Fixing threading issues with pygame pumps
- adding thread safe pygame event module
- trying optimistic picasso canvas draw
- getting rid of direct pygame pumps and event gets
Merge pull request #40 from elElmo/master

Hotfix for threading issue with pygame's pump
Changing default launch to gui
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'refs/remotes/upstream/master'
sources for images