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
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
AVE_4_BX_50ns added; interest of SMP in 72x samples
Phys14_50ns_PoissonOOT added; for limited set of signal samples @50ns
Phys14_50ns_PoissonOOT added; for limited set of signal samples @50ns
Merge pull request #5733 from franzoni/add-PU-scenariosPhys14-CMSSW_7_2_X_2014-10-07-0200

Add pu scenarios phys14 cmssw
Merge pull request #5715 from perrotta/ExoValDevBackportedTo72X

EXO Val Dev backported to 72X
backport compilation fix
Merge pull request #5749 from davidlange6/RecoAlgos_72x

backport compilation fix
Merge pull request #5727 from franzoni/GEN-relval-CMSSW_7_2_0_pre7

Gen relval cmssw 7 2 0 pre7
Merge pull request #5602 from bendavid/pythia8_200pre2_72x

Pythia 8.200pre2 (72x)