Forward-port commissioning changes
This PR forward-ports numerous changes made in the commissioning branch:
- Store additional trigger lines
- Update electron ID veto working point cuts
- Change muon ID to medium working point + dxy,dz cuts
- Make JEC database filename configurable (various JEC files are tracked in AllHadronicSUSY/TreeMaker/test)
- Add MET recorrection tool
- Update MET filters
- Add more Spring15 samples and updated cross sections to WeightProducer
- Move to condDB_v2 for global tags (no longer append "::All")
- Use VertexSelector for vertex quality check (and use results in TrackIsolationFilter)
- A few minor bug fixes