scram-project-build: update config to V05-03-25

New config does not pass --exclude-libs option to cctools linker on
Darwin/OSX. It is not supported.

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
Merge pull request #1099 from davidlt/update-config-darwin-ld

scram-project-build: update config to V05-03-25
Merge remote branch 'origin/IB/CMSSW_7_3_X/stable' into IB/CMSSW_7_0_X/stable