Added functionality for 'selected' submenu items
Added functionality for activating submenu items
Fixed 'selected' menu item state in submenus
Fixed some package meta details.
Fixed changelog and re-added fix for double media plugin issue.
Fixed bug where selection wasn't properly restored on IE 11 due to a browser bug with Element.contains.
Fixed issue where the style attribute would have the value of undefined when editing images.
Updated changelog.txt
Merge pull request #367 from jellekralt/master

Added functionality for 'selected' submenu items