Merge branch 'master', remote-tracking branch 'origin'
old NeutronSimHitsAnalyzer: to be modified to include GEM simhits
Merge remote-tracking branch 'upstream/master'
GEM simhits + more complex analysis from the original NeutronSimHitsAnalyzer

including the sensitive detector areas calculations
renamed NeutronSimHitsAnalyzer to MuSimHitOccupancy
unify chamber type accessors
separate geometry utils and analysis data structs

lighten up MuSimHitOccupancy analyzer by splitting some code off it
Merge branch 'master', remote-tracking branch 'origin'
MuSimHitOccupancy: some fixes
extra GEM plots, some simplifications & shortcuts

also extra histograms where total areas are saved
fixes for config and missing histos in MuSimHitOccupancy
new filter module: selects events with CSC chambers with simhits
Merge pull request #36 from khotilov/master

MuSimHitOccupancy analyzer; filter for selecting events with SimHits in CSC