Support fullscreen video for VAST media

Merge pull request #24 from shin1ohno/full-screen-video

Implement full screen movie

Bug fix: hide/unhide strips when rewinding

v2.1.1

Bump version to 2.1.1

Rewind event

• Add movie:rewind event
• Pause when finishing movie

Multi movie

Now you can place multiple movie on a single page.

• HTML format changed: Use class instead of id.
• EventEmitter is instantiated like singleton for root element not whole app

Bug fix

Forgot to commit app.js file...

production ready

Ready for production.

• Handle multiple strips
• Dispatch events to track play time on every seconds while playing (movie:played:5, movie:played:6, etc...)
• Multi-scene composition (still very simple but works!)