Fixed missing renames of `Q` to `wemQ`.
Fixed TreeGrid expand and collapse with arrows bug.

The expand-collapse icon wasn't updated when the arrow keys used.
CMS-4005 Image selector - Dropp zoom effect

Removed scaling styles for the image selector view.
Fix bugs in the `SelectedOptionsView`.

Updated the animation of selected options.
Fixed bug with last option selection and options reorder (dialog bug).
Merge pull request #906 from enonic/CMS-4005

CMS-4005 Image selector - Dropp zoom effect