Btag susytools 319

Trying to fix the warning reported by Anyes, originating from the btag tool.
When we moved to SUSYTools-00-03-19, we updated the btag tool (see 9399e58c).
It looks like the btagging is now using a new calibration file. The file and the configuration
are now available within [SUSYTools/data](https://svnweb.cern.ch/trac/atlasoff/browser/PhysicsAnalysis/SUSYPhys/SUSYTools/trunk/data)
@sparticlesteve what was the reason for having our own copy in `SusyNtuple/data`?
Can we drop them?

Now configuring the tool in the same way as done in [ susycutflow_1lep.py](https://svnweb.cern.ch/trac/atlasoff/browser/PhysicsAnalysis/SUSYPhys/SUSYTools/trunk/macros/susycutflow_1lep.py). Unfortunately the warning is still there, just slightly different...
Will ask about it on the susytools mailing list.

Warning was
`btag Calib: retrieveContainer: warning: unable to apply MC/MC scale factors for container MV1/AntiKt4TopoLCnoJVF/0_3511/C/default_SF with hadronisation reference = ''`
now is
`btag Calib: retrieveContainer: warning: unable to apply MC/MC scale factors for container MV1/AntiKt4TopoLCnoJVF/0_7892/C/default_SF with hadronisation reference = 'Pythia8EvtGen'`