Copy/paste functions from main.js into separate files.
Merge branch 'apprtc-refactor2' into apprtc-refactor3
Cleanup JSHint comments.
Fix apparent type with ga.js.
Fix JSHint comments in util.js.
Merge remote-tracking branch 'origin/master' into apprtc-refactor3
Move SDP related functions to a separate file.
Merge remote-tracking branch 'origin/master' into apprtc-refactor3
Merge pull request #205 from tkchin/apprtc-refactor3

AppRTC: Split main.js over several files.