fix SetDetNumberForGenericDetector

Things like sceptar should fill normally if it is added after GRIFFIN
Merge pull request #50 from evan012345/master

fix SetDetNumberForGenericDetector
modified DetectionSystemPaces
Merge pull request #51 from zmwang5/master

modified DetectionSystemPaces
Cleaned up code
Merge remote branch 'upstream/master'
Update DetectionSystemPaces.cc

The PCAES color code is a bit confusing, so I changed "canister" color to cyan, "aluminum_annulus_bot and _top" to the same as aluminum hemisphere.
Merge pull request #52 from zmwang5/patch-2

Update DetectionSystemPaces.cc
Adding histograms for paces
Merge remote branch 'upstream/master'
Added histogram output for PACES