Fixed outline vs border styl for selected elements.
Element cursor is 'move', when this element is being dragged.
Show hotkeys labels for undo/redo menu entries.
Display OS specific hotkeys in menus.
Add 'delete' command with 'Del' hotkey (Cmd+Backspace for Mac).
Added "Clear formatting" button into text editor in order to clear styles of pasted text.
Merge pull request #182 from neochief/clear-formatting

Added "Clear formatting" button into text editor
Merge pull request #180 from neochief/delete-key

Delete command & hotkey
Merge pull request #179 from neochief/move-cursor

Element cursor is 'move', when this element is being dragged.
Applies outline to the content div.  GH-178
Merge branch 'master' of github.com:tantaman/Strut