Introduces edit bar

Adds the edit bar concept to non-edit situations. Moves edit toggle
under the menu bar. Currently only shows current workspace and the current
users name.
Merge pull request #167 from benzimmer/preview_bar

Preview bar
menubar: remove ip_editing_button css class and translate menubar text
update changelog
Merge branch 'develop' into spiderpug-feature/server-side-mediabrowser

* develop:
  update changelog
  menubar: remove ip_editing_button css class and translate menubar text
  Introduces edit bar

Conflicts:
	lib/generators/cms/component/editing/templates/app/assets/stylesheets/editing/icons.css.less
	lib/generators/cms/component/editing/templates/app/assets/stylesheets/editing/mixins.less
	tmp/test_app/app/assets/stylesheets/editing/icons.css.less
	tmp/test_app/app/assets/stylesheets/editing/mixins.less