Removed old javascript example. Replaced with coffeescript example

Better explanation on how to run simple_reverse.coffee example
Added examples to the Gruntfile
Responded to issues from code review.

Author: James Elliott

Gruntfile.coffee

@@ -26,6 +26,12 @@ module.exports = (grunt) ->
       index:
         files:
           'index.js': 'index.coffee'
+      examples:
+        expand: true
+        cwd: 'examples'
+        src: ['*.coffee']
+        dest: 'examples'
+        ext: '.js'
       classes:
         expand: true
         cwd: 'src'

examples/simple.js

@@ -1,12 +1,19 @@
-#!/usr/bin/env coffee
 # This is a simple example of how to use the slack-client module in CoffeeScript. It creates a
 # bot that responds to all messages in all channels it is in with a reversed
 # string of the text received.
 #
-# To run, copy your token below, then:
-#  npm install
-#   cd examples
-#   coffee simple_reverse.coffeescript
+# To run, copy your token below, then, from the project root directory:
+#
+# To run the script directly
+#    npm install
+#    node_modules/coffee-script/bin/coffee examples/simple_reverse.coffee 
+#
+# If you want to look at / run / modify the compiled javascript
+#    npm install
+#    node_modules/coffee-script/bin/coffee -c examples/simple_reverse.coffee 
+#    cd examples
+#    node simple_reverse.js
+#
 
 Slack = require '..'
 
@@ -20,50 +27,46 @@ slack.on 'open', ->
   channels = []
   groups = []
   unreads = slack.getUnreadCount()
-  key
 
   # Get all the channels that bot is a member of
   channels = ("##{value.name}" for key, value of slack.channels when slack.channels[key].is_member)
   # Get all groups that are open and not archived 
-  groups = (value.name for key, value of slack.groups when slack.groups[key].is_open and not slack.groups[key].is_archived)
+  groups = (for key, value of slack.groups
+    if slack.groups[key].is_open and not slack.groups[key].is_archived
+      value.name)
 
 
-  console.log 'Welcome to Slack. You are @%s of %s', slack.self.name, slack.team.name
-  console.log 'You are in: %s', channels.join(', ')
-  console.log 'As well as: %s', groups.join(', ')
+  console.log "Welcome to Slack. You are @#{slack.self.name} of #{slack.team.name}"
+  console.log 'You are in: ' + channels.join(', ')
+  console.log 'As well as: ' + groups.join(', ')
 
-  messages = 
-    if unreads is 1
-      'message'
-    else
-      'messages'
+  messages = if unreads is 1 then 'message' else 'messages'
 
   console.log "You have #{unreads} unread #{messages}"
 
 
 slack.on 'message', (message) ->
-  type = message.type
   channel = slack.getChannelGroupOrDMByID(message.channel)
   user = slack.getUserByID(message.user)
-  time = message.ts
-  text = message.text
   response = ''
 
-  channelName =
-    if channel.is_channel
-      "#"
-    else
-      ""
+  {type, ts, text} = message
+
+  channelName = if channel.is_channel then '#' else ''
   channelName += channel.name
 
-  console.log "Received: #{type} #{channelName} @#{user.name} #{time} \"#{text}\""
+  console.log """
+    Received: #{type} #{channelName} @#{user.name} #{ts} "#{text}"
+  """
 
   # Respond to messages with the reverse of the text received.
 
   if type is 'message'
     response = text.split('').reverse().join('')
     channel.send response
-    console.log "@#{slack.self.name} responded with \"#{response}\""
+    console.log """
+      @#{slack.self.name} responded with "#{response}"
+    """
 
 
 slack.on 'error', (error) ->