Engine beta 01

Enhancements:
1. Status bar support (status bar not implemented)
2. new interface IOffencible that is required by enemies that can attack
the player
3. Player can move in vertical direction, restricted to bottom 1/3 of
window
4. Various improvements
5. Bugfixes
Engine beta 01

Enhancements:
1. Status bar support (status bar not implemented)
2. new interface IOffencible that is required by enemies that can attack
the player
3. Player can move in vertical direction, restricted to bottom 1/3 of
window
4. Various improvements
5. Bugfixes
Status bar implementation
Merge remote-tracking branch 'origin/EngineBeta01'