Better browser sniffing suggested at 414f33563d (commitcomment-7936060)

lib/bunyan.js

@@ -47,13 +47,8 @@ try {
 }
 
 // Are we in the browser (e.g. running via browserify)?
-var browser;
-try {
-    window
-    browser = true;
-} catch (e) {
-    browser = false;
-}
+var isBrowser = function () {
+        return typeof (window) !== 'undefined' && this === window; }();
 
 
 
@@ -380,7 +375,7 @@ function Logger(options, _childOptions, _childSimple) {
     } else if (parent && options.level) {
         this.level(options.level);
     } else if (!parent) {
-        if (browser) {
+        if (isBrowser) {
             /*
              * In the browser we'll be emitting to console.log by default.
              * Any console.log worth its salt these days can nicely render