diff --git a/lib/nconf.js b/lib/nconf.js
index 503b52d..be81056 100644
--- a/lib/nconf.js
+++ b/lib/nconf.js
@@ -22,7 +22,7 @@ require('pkginfo')(module, 'version');
 fs.readdirSync(__dirname + '/nconf/stores').forEach(function (file) {
   var store = file.replace('.js', ''),
       name  = common.capitalize(store);
-      
+
   nconf.__defineGetter__(name, function () {
     return require('./nconf/stores/' + store)[name];
   });
diff --git a/lib/nconf/common.js b/lib/nconf/common.js
index 50efb3a..730de70 100644
--- a/lib/nconf/common.js
+++ b/lib/nconf/common.js
@@ -4,7 +4,7 @@
  * (C) 2011, Nodejitsu Inc.
  *
  */
- 
+
 var fs = require('fs'),
     async = require('async'),
     formats = require('./formats'),
@@ -15,7 +15,7 @@ var common = exports;
 //
 // ### function path (key)
 // #### @key {string} The ':' delimited key to split
-// Returns a fully-qualified path to a nested nconf key. 
+// Returns a fully-qualified path to a nested nconf key.
 //
 common.path = function (key) {
   return key.split(':');
@@ -50,7 +50,7 @@ common.loadFiles = function (files, callback) {
 
   function parseFile (file, next) {
     fs.readFile(file, function (err, data) {
-      return !err 
+      return !err
         ? next(null, options.format.parse(data.toString()))
         : next(err);
     });
@@ -91,13 +91,13 @@ common.loadFilesSync = function (files) {
 //
 common.merge = function (objs) {
   var store = new Memory();
-  
+
   objs.forEach(function (obj) {
     Object.keys(obj).forEach(function (key) {
       store.merge(key, obj[key]);
     });
   });
-  
+
   return store.store;
 };
 
diff --git a/lib/nconf/provider.js b/lib/nconf/provider.js
index fdb0d7b..c1a5de7 100644
--- a/lib/nconf/provider.js
+++ b/lib/nconf/provider.js
@@ -26,7 +26,7 @@ var Provider = exports.Provider = function (options) {
 };
 
 //
-// Define wrapper functions for using basic stores 
+// Define wrapper functions for using basic stores
 // in this instance
 //
 ['argv', 'env', 'file'].forEach(function (type) {
@@ -36,7 +36,7 @@ var Provider = exports.Provider = function (options) {
 });
 
 //
-// Define wrapper functions for using 
+// Define wrapper functions for using
 // overrides and defaults
 //
 ['defaults', 'overrides'].forEach(function (type) {
@@ -45,7 +45,7 @@ var Provider = exports.Provider = function (options) {
     if (!options.type) {
       options.type = 'literal';
     }
-    
+
     return this.add(type, options);
   };
 });
@@ -54,8 +54,8 @@ var Provider = exports.Provider = function (options) {
 // ### function use (name, options)
 // #### @type {string} Type of the nconf store to use.
 // #### @options {Object} Options for the store instance.
-// Adds (or replaces) a new store with the specified `name` 
-// and `options`. If `options.type` is not set, then `name` 
+// Adds (or replaces) a new store with the specified `name`
+// and `options`. If `options.type` is not set, then `name`
 // will be used instead:
 //
 //    provider.use('file');
@@ -70,18 +70,18 @@ Provider.prototype.use = function (name, options) {
       return options[key] === store[key];
     });
   }
-  
+
   var store = this.stores[name],
       update = store && !sameOptions(store);
-  
+
   if (!store || update) {
     if (update) {
       this.remove(name);
     }
-    
+
     this.add(name, options);
   }
-  
+
   return this;
 };
 
@@ -98,22 +98,22 @@ Provider.prototype.use = function (name, options) {
 Provider.prototype.add = function (name, options) {
   options  = options      || {};
   var type = options.type || name;
-  
+
   if (!require('../nconf')[common.capitalize(type)]) {
     throw new Error('Cannot add store with unknown type: ' + type);
   }
-  
+
   this.stores[name] = this.create(type, options);
-  
+
   if (this.stores[name].loadSync) {
     this.stores[name].loadSync();
   }
-  
+
   return this;
 };
 
 //
-// ### function remove (name) 
+// ### function remove (name)
 // #### @name {string} Name of the store to remove from this instance
 // Removes a store with the specified `name` from this instance. Users
 // are allowed to pass in a type argument (e.g. `memory`) as name if
@@ -128,7 +128,7 @@ Provider.prototype.remove = function (name) {
 // ### function create (type, options)
 // #### @type {string} Type of the nconf store to use.
 // #### @options {Object} Options for the store instance.
-// Creates a store of the specified `type` using the 
+// Creates a store of the specified `type` using the
 // specified `options`.
 //
 Provider.prototype.create = function (type, options) {
@@ -139,11 +139,11 @@ Provider.prototype.create = function (type, options) {
 // ### function init (options)
 // #### @options {Object} Options to initialize this instance with.
 // Initializes this instance with additional `stores` or `sources` in the
-// `options` supplied. 
+// `options` supplied.
 //
 Provider.prototype.init = function (options) {
   var self = this;
-  
+
   //
   // Add any stores passed in through the options
   // to this instance.
@@ -160,7 +160,7 @@ Provider.prototype.init = function (options) {
       self.add(store.name || name || store.type, store);
     });
   }
-  
+
   //
   // Add any read-only sources to this instance
   //
@@ -189,9 +189,9 @@ Provider.prototype.get = function (key, callback) {
   if (!callback) {
     return this._execute('get', 1, key, callback);
   }
-  
+
   //
-  // Otherwise the asynchronous, hierarchical `get` is 
+  // Otherwise the asynchronous, hierarchical `get` is
   // slightly more complicated because we do not need to traverse
   // the entire set of stores, but up until there is a defined value.
   //
@@ -199,24 +199,24 @@ Provider.prototype.get = function (key, callback) {
       names = Object.keys(this.stores),
       self = this,
       response;
-      
+
   async.whilst(function () {
     return typeof response === 'undefined' && current < names.length;
   }, function (next) {
     var store = self.stores[names[current]];
     current++;
-    
+
     if (store.get.length >= 2) {
       return store.get(key, function (err, value) {
         if (err) {
           return next(err);
         }
-        
+
         response = value;
         next();
       });
     }
-    
+
     response = store.get(key);
     next();
   }, function (err) {
@@ -241,7 +241,7 @@ Provider.prototype.set = function (key, value, callback) {
 // Clears all keys associated with this instance.
 //
 Provider.prototype.reset = function (callback) {
-  return this._execute('reset', 0, callback);  
+  return this._execute('reset', 0, callback);
 };
 
 //
@@ -259,7 +259,7 @@ Provider.prototype.clear = function (key, callback) {
 // #### @key {string} Key to merge the value into
 // #### @value {literal|Object} Value to merge into the key
 // #### @callback {function} **Optional** Continuation to respond to when complete.
-// Merges the properties in `value` into the existing object value at `key`. 
+// Merges the properties in `value` into the existing object value at `key`.
 //
 // 1. If the existing value `key` is not an Object, it will be completely overwritten.
 // 2. If `key` is not supplied, then the `value` will be merged into the root.
@@ -270,19 +270,19 @@ Provider.prototype.merge = function () {
       callback = typeof args[args.length - 1] === 'function' && args.pop(),
       value = args.pop(),
       key = args.pop();
-      
+
   function mergeProperty (prop, next) {
     return self._execute('merge', 2, prop, value[prop], next);
   }
-      
+
   if (!key) {
     if (Array.isArray(value) || typeof value !== 'object') {
       return onError(new Error('Cannot merge non-Object into top-level.'), callback);
     }
-    
+
     return async.forEach(Object.keys(value), mergeProperty, callback || function () { })
   }
-  
+
   return this._execute('merge', 2, key, value, callback);
 };
 
@@ -293,33 +293,33 @@ Provider.prototype.merge = function () {
 //
 Provider.prototype.load = function (callback) {
   var self = this;
-  
+
   function getStores () {
     var stores = Object.keys(self.stores);
     stores.reverse();
-    return stores.map(function (name) { 
+    return stores.map(function (name) {
       return self.stores[name];
     });
   }
-  
+
   function loadStoreSync(store) {
     if (!store.loadSync) {
       throw new Error('nconf store ' + store.type + ' has no loadSync() method');
     }
-    
+
     return store.loadSync();
   }
-  
+
   function loadStore(store, next) {
     if (!store.load && !store.loadSync) {
       return next(new Error('nconf store ' + store.type + ' has no load() method'));
     }
-    
+
     return store.loadSync
       ? next(null, store.loadSync())
       : store.load(next);
   }
-  
+
   function loadBatch (targets, done) {
     if (!done) {
       return common.merge(targets.map(loadStoreSync));
@@ -329,26 +329,26 @@ Provider.prototype.load = function (callback) {
       return err ? done(err) : done(null, common.merge(objs));
     });
   }
-  
+
   function mergeSources (data) {
     //
-    // If `data` was returned then merge it into 
+    // If `data` was returned then merge it into
     // the system store.
     //
     if (data && typeof data === 'object') {
       self.use('sources', {
-        type: 'literal', 
+        type: 'literal',
         store: data
       });
     }
   }
-  
+
   function loadSources () {
     var sourceHierarchy = self.sources.splice(0);
     sourceHierarchy.reverse();
 
     //
-    // If we don't have a callback and the current 
+    // If we don't have a callback and the current
     // store is capable of loading synchronously
     // then do so.
     //
@@ -356,78 +356,78 @@ Provider.prototype.load = function (callback) {
       mergeSources(loadBatch(sourceHierarchy));
       return loadBatch(getStores());
     }
-    
+
     loadBatch(sourceHierarchy, function (err, data) {
       if (err) {
         return callback(err);
       }
-      
+
       mergeSources(data);
       return loadBatch(getStores(), callback);
     });
   }
-  
-  return self.sources.length 
+
+  return self.sources.length
     ? loadSources()
     : loadBatch(getStores(), callback);
 };
 
 //
-// ### function save (value, callback) 
+// ### function save (value, callback)
 // #### @value {Object} **Optional** Config object to set for this instance
 // #### @callback {function} Continuation to respond to when complete.
 // Removes any existing configuration settings that may exist in this
-// instance and then adds all key-value pairs in `value`. 
+// instance and then adds all key-value pairs in `value`.
 //
 Provider.prototype.save = function (value, callback) {
   if (!callback && typeof value === 'function') {
     callback = value;
     value = null;
   }
-  
+
   var self = this,
       names = Object.keys(this.stores);
-  
+
   function saveStoreSync(name) {
     var store = self.stores[name];
-    
+
     //
-    // If the `store` doesn't have a `saveSync` method, 
-    // just ignore it and continue. 
+    // If the `store` doesn't have a `saveSync` method,
+    // just ignore it and continue.
     //
     return store.saveSync
       ? store.saveSync()
       : null;
   }
-  
+
   function saveStore(name, next) {
     var store = self.stores[name];
-    
+
     //
-    // If the `store` doesn't have a `save` or saveSync` 
-    // method(s), just ignore it and continue. 
+    // If the `store` doesn't have a `save` or saveSync`
+    // method(s), just ignore it and continue.
     //
     if (!store.save && !store.saveSync) {
       return next();
     }
-    
+
     return store.saveSync
       ? next(null, store.saveSync())
       : store.save(next);
   }
-  
+
   //
-  // If we don't have a callback and the current 
+  // If we don't have a callback and the current
   // store is capable of saving synchronously
   // then do so.
   //
   if (!callback) {
     return common.merge(names.map(saveStoreSync));
   }
-  
+
   async.map(names, saveStore, function (err, objs) {
     return err ? callback(err) : callback();
-  });  
+  });
 };
 
 //
@@ -444,7 +444,7 @@ Provider.prototype._execute = function (action, syncLength /* [arguments] */) {
       destructive = ['set', 'clear', 'merge'].indexOf(action) !== -1,
       self = this,
       response;
-  
+
   function runAction (name, next) {
     var store = self.stores[name];
 
@@ -456,7 +456,7 @@ Provider.prototype._execute = function (action, syncLength /* [arguments] */) {
       ? store[action].apply(store, args.concat(next))
       : next(null, store[action].apply(store, args));
   }
-  
+
   if (callback) {
     return async.forEach(Object.keys(this.stores), runAction, function (err) {
       return err ? callback(err) : callback();
@@ -475,7 +475,7 @@ Provider.prototype._execute = function (action, syncLength /* [arguments] */) {
       response = store[action].apply(store, args);
     }
   });
-    
+
   return response;
 }
 
@@ -486,6 +486,6 @@ function onError(err, callback) {
   if (callback) {
     return callback(err);
   }
-  
+
   throw err;
 }
\ No newline at end of file
diff --git a/lib/nconf/stores/argv.js b/lib/nconf/stores/argv.js
index befad1d..3841f7d 100644
--- a/lib/nconf/stores/argv.js
+++ b/lib/nconf/stores/argv.js
@@ -4,10 +4,10 @@
  * (C) 2011, Nodejitsu Inc.
  *
  */
- 
+
 var util = require('util'),
     Memory = require('./memory').Memory;
- 
+
 //
 // ### function Argv (options)
 // #### @options {Object} Options for this instance.
@@ -36,26 +36,26 @@ Argv.prototype.loadSync = function () {
 
 //
 // ### function loadArgv ()
-// Loads the data passed in from the command-line arguments 
+// Loads the data passed in from the command-line arguments
 // into this instance.
 //
 Argv.prototype.loadArgv = function () {
-  var self = this, 
+  var self = this,
       argv;
-  
+
   argv = typeof this.options === 'object'
     ? require('optimist')(process.argv.slice(2)).options(this.options).argv
     : require('optimist')(process.argv.slice(2)).argv;
-  
+
   if (!argv) {
     return;
   }
-  
+
   this.readOnly = false;
   Object.keys(argv).forEach(function (key) {
     self.set(key, argv[key]);
   });
-  
+
   this.readOnly = true;
   return this.store;
 };
\ No newline at end of file
diff --git a/lib/nconf/stores/env.js b/lib/nconf/stores/env.js
index cae922b..936d45a 100644
--- a/lib/nconf/stores/env.js
+++ b/lib/nconf/stores/env.js
@@ -4,10 +4,10 @@
  * (C) 2011, Nodejitsu Inc.
  *
  */
- 
+
 var util = require('util'),
     Memory = require('./memory').Memory;
- 
+
 //
 // ### function Env (options)
 // #### @options {Object} Options for this instance.
@@ -40,14 +40,14 @@ Env.prototype.loadSync = function () {
 //
 Env.prototype.loadEnv = function () {
   var self = this;
-  
+
   this.readOnly = false;
   Object.keys(process.env).filter(function (key) {
     return !self.options.length || self.options.indexOf(key) !== -1;
   }).forEach(function (key) {
     self.set(key, process.env[key]);
   });
-  
+
   this.readOnly = true;
   return this.store;
 };
diff --git a/lib/nconf/stores/file.js b/lib/nconf/stores/file.js
index 5d9de29..5620ee1 100644
--- a/lib/nconf/stores/file.js
+++ b/lib/nconf/stores/file.js
@@ -11,7 +11,7 @@ var fs = require('fs'),
     formats = require('../formats'),
     Memory = require('./memory').Memory,
     existsSync = fs.existsSync || path.existsSync;
- 
+
 //
 // ### function File (options)
 // #### @options {Object} Options for this instance
@@ -30,7 +30,7 @@ var File = exports.File = function (options) {
   this.dir    = options.dir    || process.cwd();
   this.format = options.format || formats.json;
   this.json_spacing = options.json_spacing || 2;
-  
+
   if (options.search) {
     this.search(this.dir);
   }
@@ -40,10 +40,10 @@ var File = exports.File = function (options) {
 util.inherits(File, Memory);
 
 //
-// ### function save (value, callback) 
+// ### function save (value, callback)
 // #### @value {Object} _Ignored_ Left here for consistency
 // #### @callback {function} Continuation to respond to when complete.
-// Saves the current configuration object to disk at `this.file` 
+// Saves the current configuration object to disk at `this.file`
 // using the format specified by `this.format`.
 //
 File.prototype.save = function (value, callback) {
@@ -51,17 +51,17 @@ File.prototype.save = function (value, callback) {
     callback = value;
     value = null;
   }
-  
+
   fs.writeFile(this.file, this.format.stringify(this.store, null, this.json_spacing), function (err) {
     return err ? callback(err) : callback();
   });
 };
 
 //
-// ### function saveSync (value, callback) 
+// ### function saveSync (value, callback)
 // #### @value {Object} _Ignored_ Left here for consistency
 // #### @callback {function} **Optional** Continuation to respond to when complete.
-// Saves the current configuration object to disk at `this.file` 
+// Saves the current configuration object to disk at `this.file`
 // using the format specified by `this.format` synchronously.
 //
 File.prototype.saveSync = function (value) {
@@ -94,14 +94,14 @@ File.prototype.load = function (callback) {
       if (err) {
         return callback(err);
       }
-      
+
       try {
         self.store = self.format.parse(data.toString());
       }
       catch (ex) {
         return callback(new Error("Error parsing your JSON configuration file."));
       }
-      
+
       callback(null, self.store);
     });
   });
@@ -138,8 +138,8 @@ File.prototype.loadSync = function () {
 //
 // ### function search (base)
 // #### @base {string} Base directory (or file) to begin searching for the target file.
-// Attempts to find `this.file` by iteratively searching up the 
-// directory structure 
+// Attempts to find `this.file` by iteratively searching up the
+// directory structure
 //
 File.prototype.search = function (base) {
   var looking = true,
@@ -181,7 +181,7 @@ File.prototype.search = function (base) {
       return false;
     }
   }
-  
+
   while (looking) {
     //
     // Iteratively look up the directory structure from `base`
@@ -210,7 +210,7 @@ File.prototype.search = function (base) {
           // Ignore errors
           //
         }
-        
+
         looking = false;
       }
     }
@@ -222,6 +222,6 @@ File.prototype.search = function (base) {
   // the search was unsuccessful use the original value for `this.file`.
   //
   this.file = fullpath || this.file;
-  
+
   return fullpath;
 };
diff --git a/lib/nconf/stores/literal.js b/lib/nconf/stores/literal.js
index 55c64cc..c7c1752 100644
--- a/lib/nconf/stores/literal.js
+++ b/lib/nconf/stores/literal.js
@@ -5,12 +5,12 @@
  *
  */
 
-var util = require('util'), 
+var util = require('util'),
     Memory = require('./memory').Memory
 
 var Literal = exports.Literal = function Literal (options) {
   Memory.call(this, options);
-  
+
   options       = options || {}
   this.type     = 'literal';
   this.readOnly = true;
diff --git a/lib/nconf/stores/memory.js b/lib/nconf/stores/memory.js
index 1d25cd3..e075d7f 100644
--- a/lib/nconf/stores/memory.js
+++ b/lib/nconf/stores/memory.js
@@ -13,7 +13,7 @@ var common = require('../common');
 // Constructor function for the Memory nconf store which maintains
 // a nested json structure based on key delimiters `:`.
 //
-// e.g. `my:nested:key` ==> `{ my: { nested: { key: } } }` 
+// e.g. `my:nested:key` ==> `{ my: { nested: { key: } } }`
 //
 var Memory = exports.Memory = function (options) {
   options       = options || {};
@@ -22,7 +22,7 @@ var Memory = exports.Memory = function (options) {
   this.mtimes   = {};
   this.readOnly = false;
   this.loadFrom = options.loadFrom || null;
-  
+
   if (this.loadFrom) {
     this.store = common.loadFilesSync(this.loadFrom);
   }
@@ -34,7 +34,7 @@ var Memory = exports.Memory = function (options) {
 // Retrieves the value for the specified key (if any).
 //
 Memory.prototype.get = function (key) {
-  var target = this.store, 
+  var target = this.store,
       path   = common.path(key);
 
   //
@@ -45,7 +45,7 @@ Memory.prototype.get = function (key) {
     if (!(target && key in target)) {
       return;
     }
-    
+
     target = target[key];
     if (path.length === 0) {
       return target;
@@ -63,15 +63,15 @@ Memory.prototype.set = function (key, value) {
   if (this.readOnly) {
     return false;
   }
-  
-  var target = this.store, 
+
+  var target = this.store,
       path   = common.path(key);
-  
+
   //
   // Update the `mtime` (modified time) of the key
   //
   this.mtimes[key] = Date.now();
-  
+
   //
   // Scope into the object to get the appropriate nested context
   //
@@ -80,10 +80,10 @@ Memory.prototype.set = function (key, value) {
     if (!target[key] || typeof target[key] !== 'object') {
       target[key] = {};
     }
-    
+
     target = target[key];
   }
-  
+
   // Set the specified value in the nested JSON structure
   key = path.shift();
   target[key] = value;
@@ -99,15 +99,15 @@ Memory.prototype.clear = function (key) {
   if (this.readOnly) {
     return false;
   }
-  
-  var target = this.store, 
+
+  var target = this.store,
       path   = common.path(key);
-  
+
   //
   // Remove the key from the set of `mtimes` (modified times)
   //
   delete this.mtimes[key];
-  
+
   //
   // Scope into the object to get the appropriate nested context
   //
@@ -116,10 +116,10 @@ Memory.prototype.clear = function (key) {
     if (!target[key]) {
       return;
     }
-    
+
     target = target[key];
   }
-  
+
   // Delete the key from the nested JSON structure
   key = path.shift();
   delete target[key];
@@ -138,7 +138,7 @@ Memory.prototype.merge = function (key, value) {
   if (this.readOnly) {
     return false;
   }
-  
+
   //
   // If the key is not an `Object` or is an `Array`,
   // then simply set it. Merging is for Objects.
@@ -146,17 +146,17 @@ Memory.prototype.merge = function (key, value) {
   if (typeof value !== 'object' || Array.isArray(value)) {
     return this.set(key, value);
   }
-  
+
   var self    = this,
-      target  = this.store, 
+      target  = this.store,
       path    = common.path(key),
       fullKey = key;
-  
+
   //
   // Update the `mtime` (modified time) of the key
   //
   this.mtimes[key] = Date.now();
-  
+
   //
   // Scope into the object to get the appropriate nested context
   //
@@ -165,13 +165,13 @@ Memory.prototype.merge = function (key, value) {
     if (!target[key]) {
       target[key] = {};
     }
-    
+
     target = target[key];
   }
 
   // Set the specified value in the nested JSON structure
   key = path.shift();
-  
+
   //
   // If the current value at the key target is not an `Object`,
   // or is an `Array` then simply override it because the new value
@@ -181,7 +181,7 @@ Memory.prototype.merge = function (key, value) {
     target[key] = value;
     return true;
   }
-  
+
   return Object.keys(value).every(function (nested) {
     return self.merge(fullKey + ':' + nested, value[nested]);
   });
@@ -195,7 +195,7 @@ Memory.prototype.reset = function () {
   if (this.readOnly) {
     return false;
   }
-  
+
   this.mtimes = {};
   this.store  = {};
   return true;
diff --git a/usage.js b/usage.js
index b7c30ca..ebd5f28 100644
--- a/usage.js
+++ b/usage.js
@@ -18,7 +18,7 @@ var single = new nconf.Provider({
 
 //
 // Configure the provider with multiple hierarchical stores
-// representing `user` and `global` configuration values. 
+// representing `user` and `global` configuration values.
 //
 var multiple = new nconf.Provider({
   stores: [