[DF-731] Added "hide readonly" tool button into property panel.
[DF-731] Added color icons into scene graph.
[DF-732] Fixes userNode creation.
Merge branch 'development' of https://github.com/dava/dava.framework into development

Conflicts:
	Tools/ResourceEditor/Classes/Qt/DockSceneGraph/SceneGraphModel.cpp
	Tools/ResourceEditor/DataQt/mainwindow.ui
	Tools/ResourceEditor/ResourceEditorQtVS2010.vcxproj.filters