Force TechRacer maps when image map is selected. Fixes
Google Code issue #882
If you start a TechRacer map with an image map selected, the resulting map will likely to be completely unplayable.
So this commit disables this.
file(GLOB vertshaders *.vs)
file(GLOB fragshaders *.fs)
install(FILES
${vertshaders}
${fragshaders}
DESTINATION ${SHAREPATH}Data/Shaders)