Merge branch 'expressjs'
Extended robot.brain to act as a general-purpose key-value store.

Additions:
 - robot.brain.set
   For storing arbitrary key, value pairs under a private namespace to avoid collisions.
 - robot.brain.ger
   For getting from store by key.

Signed-off-by: Diwank Singh Tomer <diwank.singh@gmail.com>
Made suggested style changes.

Details: https://github.com/github/hubot/pull/447
Merged Store into Brain.

As suggested by @technicalpickles here -
https://github.com/github/hubot/pull/447#issuecomment-15365257
Added documentation for key-value store.
Merge branch 'extended-brain' of https://github.com/creatorrr/hubot into creatorrr-extended-brain
Remove comments and simplify
Update README
fixing the json that npm install works again

the final comma on this line was stopping npm parse the file when
running npm install
Merge pull request #450 from busbyjon/master

fixing the json in package.json so that npm install works again
Removed socket.io and exposed server object.

As decided on the discussion with @atmos and @kashyapp at https://github.com/github/hubot/pull/446
Merge pull request #451 from creatorrr/expressjs

Removed socket.io and exposed server object.
Merge remote-tracking branch 'origin/master'