ignores errors for remote files
Add chat commands

Adds chat commands /viewers and /followers, however, since the Twitch
API is broken, the code for /followers is commented out. Once that API
is fixed, this should just be drop in.
implement /followers

Implements (weird) api endpoint for getting followers

Also formats numbers with commas when using these commands.
Merge branch 'chat-commands' of https://github.com/jdarmst/BetterTTV into jdarmst-chat-commands

Conflicts:
	betterttv.js