CMake adjusted to allow proper releasing.

Mac side is ready.

Updated changelog for 5.0.7rc.

Moving the 5.0.6 tag to make github's source packages have the versio…

…n number embedded.

Fixed crash in edit mode from adding a bpm change that makes the bpm …

…change after it redundant.

StepMania 5 beta 4a

StepMania 5 beta 4, for real, for real. ugh

Update bugtracker address now that the main bugtracker is on github

A band-aid until we figure out redist stuff.

Beta 2 is GO!

Put header back on ScreenOptionsService.