[DF-1023] is fixed.
[DF-1063] is fixed.
[DF-873] and [DF-967]. Implementation of DRAW_TILED option for sprites.
[DF-1064] fix. Additional fix for a defect - main window title is not updated after project is closed.
[DF-1062] fixed selection order.
[DF-1061] fixed.
Merge branch 'UIEditor' of https://github.com/adebt/dava.framework into development

Conflicts:
	Tools/UIEditor/Classes/UI/PropertyGridWidgets/backgroundpropertygridwidget.cpp
[DF-1108] Fix: PVRConverter is now StaticSingleton instead of Singleton
[DF-836] Fix: filepath errors on Windows