Added some info on the unused coord. flags

Detailing what used to be the cfClearPush and cfStopSpecialFM4 flags.
Changed name of cfAlterNotesUNK + cleanup

What's so 'unknown' about cfAlterNotes? Changed to match S1 label.
Indented coord. flags values differently (also gave cfUnused its value
back).
Renamed unused coord. flags
Merge branch 'master' into MapMacros