initial tracking infrastructure
Merge branch 'master' into tracking
add GUM tracking
Merge pull request #126 from fouksf/keyboard-shortcuts

Makes the keyboard shortcut class more readable.
Merge pull request #127 from fouksf/keyboard-shortcuts

Makes keyboard shortcuts active when chat is opened but not focused.
Fix a log message.
Adds simulcast support in meet.
Merge branch 'master' into tracking

Conflicts:
	index.html
Merge branch 'master' into tracking

Conflicts:
	index.html
Fixes simulcast layers ordering.
Merge pull request #128 from jitsi/tracking

Tracking
work around https://code.google.com/p/webrtc/issues/detail?id=3807
add missing tracking.js to #128
Fixes bug with shortcuts enabled when the user is writing in a text field.
Makes the remote video shortcut 0.