BAP-2061: basic architecture and UI for Sidebar and Widget containers created
Merge branch 'master' into ticket/BAP-2043
BAP-2061: UI improvements; icons for buttons
BAP-2061: Sorting widgets
BAP-2062: Initial architecture of widget plugin
BAP-2062: Add, setup, remove widget dialogs
BAP-2062: Adding widgets to sidebar
BAP-2062: Removing widgets from sidebar
BAP-2062: Widget setup architecture
BAP-2062: Hello world widget setup
BAP-2062: Fixes in visual styles
Merge remote-tracking branch 'origin/master' into ticket/BAP-2043
BAP-2062: install fixes
BAP-2062: Removing widget reimplemented using oro/modal
BAP-2062: Widget setup dialog reimplemented using oro/modal
BAP-2062: oro/delete-confirmation fixed
BAP-2062: UI CSS refinements
BAP-2061: Proper widget reordering
BAP-2062: Model persisting prototype; Model refactoring
BAP-2062: CSS fized