General maintenance, added BWToolkit and Sparkle update framework
Commented out NSLog statements

These were commented out to silence Xcode while debugging
Fixed issue with arrow keys not displaying in table view

This issue was fixed in version 1.0.5 of the commercial app but this
fork was version based on version 1.0.4 so it had to be fixed here
manually
Added support for mouse broadcasting

At the moment mouse broadcasting is on by default for all windows that
keys are being broadcast to. Should probably add a toggle for mouse
broadcasting to the settings panel later. Mouse clicks and drags
sometimes lag a bit so this should be looked at as well