- similar functionality in etc/tools/ThirdPartyFunctions to improve
the independence of ThirdParty while reducing clutter in the callers.
- add useGcc function for convenience
- mask seeing our own git-repo when building
STYLE: various items
- eliminate old user-editable configuration in files - now command-line only.
- use *_BUILD_DIR instead of *_BINARY_DIR for more clarity of the purpose
- drop use of '-q' option for wmakeCheckPwd (already has stderr redirect)
- drop checkVersion for makeParaView since it stopped working properly
with newer paraview version
CONFIG: update list of versions
