Make Mapster32 save as map-text if there is a wall with non-zero 'blend'.
git-svn-id: https://svn.eduke32.com/eduke32@4368 1a8010ca-5511-0410-912e-c29ae57300e0
- check map-text version on load
- LunaCON: don't allow (back)slash as identifier char
- LunaCON stand-alone: don't resort to default directory for root file names
- document non-local control flow functions and for LunaCON, ambigious lexical
elements
git-svn-id: https://svn.eduke32.com/eduke32@3933 1a8010ca-5511-0410-912e-c29ae57300e0