Remove AHK macros
Exception handling fixes, and lots of them.  Using generic
RuntimeExceptions for various errors was defeating the catch
(GBBrainError) block in StackBrain's Think method and making things
pretty ugly at times.  
Making the Exception Dialog show up in the EDT required a change to the
UI's thread locking mechanism that is now causing some stutter when the
game is at high speeds.  Working on that next.
Tinkered with the game timers to reduce the stuttering problem at high
speeds.  It's not eliminated, but it's better.
Fixed a bug that broke the game when the run button was pressed twice
(how did I miss that?)
Organized imports to clear a few Eclipse warnings.
Handle brain errors at the brain level like it was before; changed it
before I understood it  :(

Some small comment and message changes