grafx - Extensible Java Graphics Package Code

Removing extraneous whitespace from end of SynchronizedModeGameRecorder.

Making lots of progress on block drop speedups, added layers, score systems,
panic mode levels.

Finishing nightmare mode test.

To comment, listing all audio clips that will be used.

Adjusting the minimum width/height for nightmare mode sidebar.

Fixing a spelling mistake in comment, CanvasSplitter.

Augmenting GameSidebar to support nightmare mode.

Adding LaunchNightmareLevelTest, which right now is essentially a carbon copy
of LaunchLevelTest. Will be making changes incrementally.

NightmareLevelTest is as of right now a carbon copy of LevelTest, modulo the
class name and copyright notice. I will gradually make changes as fit.

Adding a class-level comment to NightmareModeAction.