From Andrew - a number of changes for MSVC.

From Andrew - a number of changes for MSVC.
cst.c: whack dead variable.
csv_util.c, globals.c, waypt.c : dont explictly init global.
gdb.c, msroute.c: return after 'fatal'. (decoration...)
gpx.c: fix cast.
ignrando.c, nmn4.c: cast _count to int.
waypt.c: init 'no' before use.
cet/* Zero length arrays aren't C89.
msvc/GPSBabel.vcproj: Update.