add emoji-me script
Merge pull request #839 from sandbochs/master

Add emoji-me script
tell.coffee: Separate rooms, Nickname matching

Merge gist [5227272](https://gist.github.com/lorenzhs/5227272)
Don't lowercase usernames

Remove previous case-insensitivity "feature", lowercasing usernames.
Merge pull request #840 from lorenzhs/patch-1

tell.coffee: Separate rooms, Nickname matching
Fix typo in children_of_type method nam
Use robot.brain.users() method to get all users

Previously this was robot.brain.users which returns null.

This change uses the users() method of @robot.brain. Another 
possible fix is to use `robot.brain.data.users` which directly
accesses the users object.
Merge pull request #842 from stevenklise/master

Fix error with getting all users in github-credentials.coffee
Merge pull request #841 from pangratz/master

Fix typo in children_of_type method