cms-git-tools: bump version to v0.10.0

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
Merge pull request #140 from davidlt/IB/CMSSW_7_0_X/stable

[CMSSW_7_0_X] cms-git-tools bump to v0.10.0
Merge remote-tracking branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/devel-gcc472