implements responsive layout for video iframes (fixes #135)
redactor autosave: saves are changes after 3 seconds
redactor autosave: cancel resets value to the one present on redactor initialization
redactor autosave: support escape button for fields edited with redactor
refactor to use more client side logic
refactor css files into editing namespace
string editor: implements autosave
sortable linklist editor
minor changes

+ no brackets when not needed
+ group actions on top

+ don't like the closeEditor boolean variable…but don't know a better solution yet
update changelog
Merge branch 'feature/redactor-autosave' into develop

* feature/redactor-autosave:
  update changelog
  minor changes
  redactor autosave: support escape button for fields edited with redactor
  redactor autosave: cancel resets value to the one present on redactor initialization
  redactor autosave: saves are changes after 3 seconds
Merge branch 'develop' into feature/input-autosave

* develop:
  update changelog
  minor changes
  redactor autosave: support escape button for fields edited with redactor
  redactor autosave: cancel resets value to the one present on redactor initialization
  redactor autosave: saves are changes after 3 seconds
bugfix: blur did not close the editor
update changelog
Merge branch 'feature/input-autosave' into develop

* feature/input-autosave:
  update changelog
  bugfix: blur did not close the editor
  string editor: implements autosave
scalable projekktor
update gems
Merge branch 'develop' into feature/responsive-videos

* develop:
  update changelog
  bugfix: blur did not close the editor
  update changelog
  minor changes
  string editor: implements autosave
  redactor autosave: support escape button for fields edited with redactor
  redactor autosave: cancel resets value to the one present on redactor initialization
  redactor autosave: saves are changes after 3 seconds
update changelog
Merge branch 'feature/responsive-videos' into develop

* feature/responsive-videos:
  update changelog
  update gems
  scalable projekktor
  implements responsive layout for video iframes (fixes #135)