'DetectorEta updates, JetMomentTool fixes, simplify modifier lists and temp...

'DetectorEta updates, JetMomentTool fixes, simplify modifier lists and temp R21 jet calibration' (JetRec-03-01-00)

	* Updates to compute DetectorEta correctly, linked to JetMomentTool changes
	* Simplifying modifier lists
	* Tagging JetRec-03-01-00

2016-11-08 Joe Taenzer <joseph.taenzer@cern.ch>
	* Modified Mass Drop Tagger (mMDT) grooming tool, class def
	* mMDT grooming tool, source code
	* Added link to JetModifiedMassDrop class
	* Added JetModifiedMassDrop class
	* Added SymmetryMeasure and RecursionChoice enums, for python config
	* Added JetSoftDrop class
	* Tagging JetRec-03-00-99


Former-commit-id: cb1ba10e