Support to view/edit models with custom widgets.
Merge branch 'master' of github.com:pangea/xcore-gui
Added FontAwesomeIcon widget
fixed conflicts added nested styles
Restyled Extension Picker

Extension picker active state and hover state changed.
States are now three dots to the left colored accordingly.
Ribbon type styleing to sublist

Restyled the selected sublist items to look like part of the page
and have a ribbon effect
alert now hidding and scroll bar on left
user nav how has a carret ontop and bumps into the toolbar
fixed extension picker. active and hover icon now 10px from text
Removed localStorageSource