[DF-895] Added new scene tree view.
[DF-895] Added scene signals handler into properties panel
[DF-895] Added scene signals handler into scene tab widget
[DF-895] Added new scene signals
[DF-895] Added scene signals handler into scene editor
[DF-895] More appropriate calculation for entities bounding boxes.
[DF-895] Added scene tree to the mainwindow
Merge branch 'development' of https://github.com/dava/dava.framework into development

Conflicts:
	Tools/ResourceEditor/Classes/Qt/Scene/SceneSignals.h
	Tools/ResourceEditor/ResourceEditorQtVS2010.vcxproj.filters
Merge branch 'development' of https://github.com/dava/dava.framework into development