move all vector/matrix instantiation to constructor
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
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)
remove -g
fix up exception as requested
This reverts commit d0c7c21f5c2816d0f943e4c528ca84966cf763fa.
Fix out-of-range exception caused in IB test. Was using wrong 'muons collection instead of 'muonTracks'.
Fix dimuon thresholds.
explicit DQMIO in datatier of GEN relvals
cleanup unused GEN fragment
Fix a leakage in HLTExoticaSubAnalysis.cc
Several fixes in the configuration and update of some example config files.
Files renamed