Added scene view
SceneView appears when a scene is selected in perspectives menu
Resend the touch only if it was not over the context menu
Added new strings
Added panels for edit the behaviors and buttons to represent it
Added the panel for view the behaviors and the functionality
Commands are executed even if there is no command stack for undo/redo
Merge pull request #507 from anserran/sceneview

Integrated scene view with the editor
Merge pull request #511 from anserran/commandsfix

Commands are executed even if there is no command stack for undo/redo
Merge pull request #509 from RotaruDan/behavioursPanel

Behaviours panel
Avoids updating frames while editing scene
Better handling in width/height in RendererActor
Format
Merge pull request #512 from anserran/fixsceneeditor

Minor fixes in scene edition