Starter version of cmake sheet.
Finished adding all of the commands

Also began sorting them into groups.
Adding links for CMake/CTest/CPack online docs
Merge branch 'config_changes' into cmake
Merge remote-tracking branch 'upstream/master' into cmake
Moving things around again.
Merge pull request #41 from peterfpeterson/cmake

Adding Cmake cheat sheet
Merge remote-tracking branch 'upstream/master'

Conflicts:
	_posts/detail/2014-05-13-cmake.html