added start, pause, resume and stop events to the root. (only start, pause, resume are used currently).
added functions to catch start/pause/resume events. The old init-function is used as start function. It makes the entity start. Resume/pause correctly pauses.
fix for hitboxes.
Added BaseClip which is the base for _ALL_ movieclips in the game. Every animation needs to have either a custom class or the BaseClip as baseclass to corretly support pausing.