* New Lua bindings SONGMAN:GetGroupNames() and SONGMAN:GetSongsInGroup(string)
* Add Lifts to PaneDisplay (StepMania 3.9+ added them)
* Fix an issue where course banners were able to trip off the uneven dimensions dialog
* NextSong/PrevSong now work when TwoPartSelection=true + TwoPartConfirmsOnly=true on ScreenSelectMusic. A new message ("TwoPartConfirmCanceled") was added to catch when this happens.
and there may have been some stray cleanup in here too
1) Fix issue where course banners were read from cache even when BannerCache wasn't set to full mode.
2) Added GetSongGroupNames() and GetSongsInGroup(sGroupName) Lua bindings.
528089b: remove preferred group filtering (leaving the setting in for later use) [Glenn Maynard]
96821ad: fix pump routine right side DownLeft not drawn [Chris Danford]
fd88c62: easier debug stepping [Chris Danford]