Updating CiC signal weights: the last commit was using the wrong number ...

...of categories passed to the script.

For the record, the following has been used :
python ./makeGlobeEfficiencyFile.py -e globeEfficiency_Legacy.dat -n ../AnalysisScripts/aux/vertex_efficiency_cic_8TeV_legacy.root --nPhoCats=6  -o ../AnalysisScripts/aux/sig_reweighing_legacy_cic_8TeV_v3.root  -v vtxIdScaleFactorFromZmumu_2012_legacypaper_v0.root --isCutBased
python ./makeGlobeEfficiencyFile.py -e globeEfficiency_Legacy_7TeV.dat -n ../AnalysisScripts/aux/vertex_efficiency_cic_7TeV_legacy.root --nPhoCats=6  -o ../AnalysisScripts/aux/sig_reweighing_legacy_cic_7TeV_v3.root  -v vtxIdScaleFactorFromZmumu_2011_legacypaper_v0.root --isCutBased

This fixes the changes introduced in https://github.com/h2gglobe/h2gglobe/commit/8924db46813c0f98d2bcc345e3b10d10223d4471