twitter boostrap 3.0 compatibility
modal header fixes
Add option to toggle display of modal footer & buttons
Merge pull request #50 from TylerLH/bootstrap3

Add option to toggle display of modal footer & buttons
Fixed unterminated statement
Merge pull request #53 from IgorTimoshenko/hotfix/unterminated-statement

Fixed unterminated statement
Use bootstrap 3 events
Merge branch 'origin/bootstrap3'

Conflicts:
	src/backbone.bootstrap-modal.js
Add example
Update README.md
Fixed backdrop removal