grafx - Extensible Java Graphics Package Code

Adding suspend()/resume() to NightmareModeAction.

Adding support for block drop speedup in NightmareModeAction.

Making use of new technique to do gradual system drop block speedups.

Changing level 46 a little bit.

Making first strides at integrating system drop block speedups into
SimpleGameLogic.

Adding classes BlockDropSpedUpCallback and BlockDropSpeedupAlgorithm in package
net.blockout.

Removing class BlockDropIncrementalSpeedupCharacteristics.

Adding BlockDropIncrementalSpeedupCharacteristics.

Making progress on NightmareModeAction.

Adding boolean values to return values in SuspendResume.