Check the type of universal id before getting its id.  Should resolve bug #2137
Simplify detecting whether a universal id represents a referenceable type.
Use Qt exit function rather than system one.
Merge remote-tracking branch 'cc9cii/master'
Properly add libunshiled include dir (again, for wizard this time)
Don't require libunshield on windows
Unshield include fix
Merge branch 'master' of https://github.com/OpenMW/openmw into unshield

Conflicts:
	apps/wizard/CMakeLists.txt
Add my scene view icons: status overview icons, element toggle icons, parts from which they're assembled and the SVG master.
supply the correct icon (without the red line) for the default rendering state
Add icon to windows executable.
Merge remote-tracking branch 'shnatsel/master'
Merge remote-tracking branch 'miroslavr/master'
Set range of spinbox types in dialogsubview.
Add the "scene-play.png" icon for launching the game from OpenCS. Also included are SVG source and the GIMP XCF with transparency mask on the edges.
Add offscreen credits and a note about the use of "Play" icon from elementary icon theme to the SVG masters. Clean up unused offscreen objects in scene view icon.
Merge remote-tracking branch 'cc9cii/editwidget-setrange'
Merge remote-tracking branch 'shnatsel/master'
Set health to 0 if it drops below 1 (Fixes #2163)