TSAGE: Fix for R2R maze minimap not handling right-hand column scrolling on-screen
TSAGE: R2R minimap scrolling fix applies vertically as well
TSAGE: R2R fix for zoomed speaking characters appearing correctly
FULLPIPE: Fix crash at scene03 load
FULLPIPE: Skip reading empty filenames
FULLPIPE: Fix crash at scene04 start
FULLPIPE: Implement  scene04_speakerCallback()
FULLPIPE: Some renames in scene04
FULLPIPE: Implement sceneHandler04_dropBottle()