cmssw-tool-conf: enable git by default

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
geant4: update to 9.6.p02

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
apt: add missing dependencies, bz2lib zlib

Add bz2lib and zlib as missing dependencies for apt.
Adjust apt and libxml2 CPPFLAGS/LDFLAGS to include zlib.

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
apt: use zlib from CMSDIST only if OFFLINE build

Make sure we use zlib from CMSDIST only if we do OFFLINE build.
ONLINE use zlib from standard system location.

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
cms-git-tools: update to v0.6

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
Merge pull request #91 from davidlt/IB/CMSSW_6_2_X/stable

[IB/CMSSW_6_2_X/stable] Enable GIT by default; Move to G4 9.6.p02