src/config.c: fix what is apparently a copy-paste typo in readconfig().

git-svn-id: http://svn.eduke32.com/eduke32@4461 1a8010ca-5511-0410-912e-c29ae57300e0
Mapster32: don't read some variables from mapster32.cfg redundant since r4344.

Mostly, these are rendering-related variables. We keep *writing* them to
mapster32.cfg so that older Mapster32 versions can be used side-by-side
for now.

git-svn-id: http://svn.eduke32.com/eduke32@4462 1a8010ca-5511-0410-912e-c29ae57300e0
Add some useful preprocessor definition to the checked-in MSVC project

git-svn-id: http://svn.eduke32.com/eduke32@4463 1a8010ca-5511-0410-912e-c29ae57300e0