fastPV with Jet Pt weighting
added newMethod, chi2-based tracks selction, sum pixel track pt with maximum 20 GeV
move all vector/matrix instantiation to constructor
patch for spin variables
avoid crash if particle id is not present in HepPDT
update CSCTF for CMSSW_7_2_X
further optimization of multifit
Merge pull request #5551 from bendavid/pythia8200pre2interface

Pythia8.200pre2 interface changes
properly initialize event attributes in pythia8 lhe interface
update key configuration snippets for pythia 8.2 and create organized fragments for common pythia8 settings
improve comment in config file
proper accounting for merging weights from CKKWL, UMEPS, UNLOPS
set prio withing wma valid range; affects only relval injection, no impact on IB
more fengshui
as much as I can do so far, sadly only 10%
review all use of views (changes are in the noise for timing)
make the Run1 configuration as the default one, add gangedME11a = False in custom function
remove -g
Fix conflicting checks.

The if statement would never be true.
With this fix the functionality is preserved with some more information in case of error.
Merged refs/pull/5634/head from repository cms-sw