[DF-2904] Now only single sceneActivated signal will be emited.
[DF-185] Open scene wait bar fix, and wrong project message fix
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials
[DF-185] compilation fixes
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials