remove errors, hello world, and stream examples

examples/errors.js

@@ -1,37 +0,0 @@
-
-var koa = require('..');
-var app = koa();
-
-// look ma, error propagation!
-
-app.use(function *(next){
-  try {
-    yield next;
-  } catch (err) {
-    // some errors will have .status
-    // however this is not a guarantee
-    this.status = err.status || 500;
-    this.type = 'html';
-    this.body = '<p>Something <em>exploded</em>, please contact Maru.</p>';
-
-    // since we handled this manually we'll
-    // want to delegate to the regular app
-    // level error handling as well so that
-    // centralized still functions correctly.
-    this.app.emit('error', err, this);
-  }
-});
-
-// response
-
-app.use(function *(){
-  throw new Error('boom boom');
-});
-
-// error handler
-
-app.on('error', function(err){
-  console.log('sent error %s to the cloud', err.message);
-});
-
-app.listen(3000);

examples/hello-world.js

@@ -1,9 +0,0 @@
-
-var koa = require('..');
-var app = koa();
-
-app.use(function *(){
-  this.body = 'Hello World';
-});
-
-app.listen(3000);

examples/streams.js

@@ -1,13 +0,0 @@
-
-var koa = require('..');
-var fs = require('fs');
-var app = koa();
-
-// try GET /streams.js
-
-app.use(function *(){
-  var path = __dirname + this.path;
-  this.body = fs.createReadStream(path);
-});
-
-app.listen(3000);