Add RefToBase member `holder_' as transient in Reflex dicts.

RefToBase is a templated class with a private memeber holder_ of
reftobase::BaseHolder<value_type>* type. The following type is
not part of any dictionary, thus holder_ is not saved.

Example error generated by ROOT:

Error in <TStreamerInfo::Build:>: edm::RefToBase<reco::Electron>:
edm::reftobase::BaseHolder<reco::Electron>* has no streamer or
dictionary, data member holder_ will not be saved

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
histogram booking moved to the bigRun routines
moving histogram booking to beginRun
moving the histogram booking to beginRun
removing the module EventDisplay because it is obsolete
Merge branch 'CMSSW_7_0_X' of https://github.com/cms-sw/cmssw into from-CMSSW_7_0_0_pre0
Merge branch 'CMSSW_7_0_X' of https://github.com/cms-sw/cmssw into from-CMSSW_7_0_0_pre0
moving histograms to beginRun
Thread safe changes
Update of PDF reweighting supporting MadGraph use case, use first PDF as default/reference
fixes to CMS_EWK_11_021
changes for SeedingLayer based LayerHitMapCache plus some fixes and additions to HitExtractorSTRP
Add edm::reftobase::BaseHolder<*> type into a dictionary.

The following is needed for edm::RefToBase<*>, to store holder_
data member.

From Dr15Jones:
  holder_ must be stored since it holds all the information we need
  to retrieve the data. BaseHolder is an abstract base class but its
  concrete implementations ultimately hold an edm::Ref which must be
  stored

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
Added MuonDQM-GED validation plots
Added MuonDQM-GED validation plots
Added sequence for PF muon validation
added PFMuonValidationSequence to the global Validation Sequence
first cleaning of the TrackingTruthValid code (patch to clean the WARNING in compilation after the new TrackingParticle)
update conf tag
remove event display from the monitor interface