Merge branch 'expose-path-traverse' into 'next'

src/CMakeLists.txt

src/Sourcefile

src/deh_tables.c

src/lua_baselib.c

src/lua_interceptlib.c

src/lua_libs.h

src/lua_script.c

src/p_maputl.c

src/sdl/Srb2SDL-vc10.vcxproj

src/sdl/Srb2SDL-vc10.vcxproj.filters