Refactoring: clean javascript files.

 * Defined in separate files.
 * Isolated.
 * i18n.
Merge branch 'dev' of https://github.com/adericbourg/proto-poll into dev

Conflicts:
	app/views/event/eventAddDates.scala.html
	app/views/listPolls.scala.html
	app/views/poll/pollResults.scala.html
	app/views/question/questionAddChoices.scala.html