v0.2-alpha: Faster algorithms, added zoom and positioning.

right click'n'drag for zooming, left click'n'drag for positioning
right or left doubleclick resets zoom or position

GemForce Scheme Visualizer

Not much happening here. You may paste or (if you don't mind notifiers popping up on every keystroke) type in a specc or comb scheme that will be visually represented.

Restrictions on this very early version:
-Color only for non-combined gems
-No more than a resulting G4 (trying schemes that go higher results in crash)
-No saving of images

Please check it, I found a scheme by accident that wasn't interpreted correctly, resulting in a bug. If you find such a scheme (remember: G4 max), please tell me the scheme, so I can check what's going wrong. Thanks!