fixed most gcc warnings when compiling for linux.
client can now connect to 10002 servers. probably 10000+10001 too, but too lazy to test.
doom3 map loading is working again, but has too many issues for it to be useful (leaks, premature purges, no texture_d suffix support), so its still disabled for now.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4999 fc73d0e0-1445-4013-8a0c-d673dee63da5
