add vimeo widget generator
add example for vimeo widget
add specs for vimeo widget
add youtube widget
remove vimeo and youtube from video widget
move redactor bugfix into redactor.css.less
use public redactor api instead of internal data attribute
extract fixed menubar css styles
add oembed for vimeo and youtube
Merge branch 'develop' into feature/video-widgets
fix youtube-widget test
bugfix: rename fixed_menubar.css.less to fixed_menubar.less

The fixed menubar file is imported in the editing.css.less file and not
used as a stand-alone css file.
bugfix: The google maps widget did not respect a CSS width and height

After removing a redundant DIV layer that held the name of the widget
object class, the CSS for the google maps widget did not get adjusted
appropriately.

fixes #181
update integration test app gems
Merge branch 'develop' into feature/video-widgets

* develop:
  update integration test app gems
  bugfix: The google maps widget did not respect a CSS width and height
  bugfix: rename fixed_menubar.css.less to fixed_menubar.less

Conflicts:
	tmp/test_app/Gemfile.lock
use example_migration from own template folder
video CSS no longer needed
add vimeo and youtube video widgets to the integration task
refactor video widget

+ move controls setting into the DOM
+ remove "embed_url" as it is not needed for the generic player
+ remove projekktor DOM id, as it is generated automatically
+ update specs
use local template folder for example_migration.rb