Changed

• Physic: set collision shapes as static by default (those should be fixed anyway)
• Renderable : refactor of Draggable and DropTarget base objects

Fixed

• Physic: fix improper behavior for static bodies responding to collisions (thanks @dynamo-foundation)
• Physic: static bodies are now properly filtered out if within the same node or overlapping
• Renderable : fix a me.Sprite bug when reusing the same image/texture with different frame width/height (thanks @dynamo-foundation)