 * 06.07.2012 (1.1.1)
    - the renderer no longer renders blocks if they already exist in the world (fixes the derpy effect of overlapping blocks)

 * 03.07.2012 (1.1)
    - added a render limit for imported schematics (you can no import schematics of any size)
    - added flipping and rotating of schematics (default keys: NUMPAD_MINUS for flipping, NUMPAD_PLUS for rotation)

 * 02.07.2012 (1.0)
    - initial release for 1.2.5
