TileSets can be fed from Rgns
MakeIDB: Retire -lens and -k options and PreClicks.xml
Retire UpdateMontages, add gathermons.sht
MakeMontages: Remove (never implemented) -lens option
Pretty
Move crossgo.sht into temp; use X_A_BIN_mons data format
Scapeops now using rgns
Replace cross_lowtohires with cross_scaffold
Explicit #includes
Rename submon->msub, subblocks->bsub, sumymons->mreport