Show git revision via -DOPENXCOM_VERSION_GIT definition during
compilation.
Now we can set current git revision to version.h in commandline. It
works on CMake buildsystem, but you can use old Makefile with
make -DOPENXCOM_VERSION_GIT="some-revision"
Merge pull request #832 from winterheart/show-git-revisions-in-game

Show git revision via -DOPENXCOM_VERSION_GIT definition during