Static fixes for thread safety for CondCore
Classes in DataFormats/L1DTTrackFinder only return const * from const functions.

The thread-safety checker complained that the Container classes in DataFormats/L1DTTrackFinder
were returning non-const pointers to member data from const member functions. These were
changed to return const pointers. This required changing variable types in calling classes
however it turned out those classes never modified the objects anyway so no algorithmic
changes were neeed.
Fill mutable in L1ParticleMap in a thread-safe way

L1ParticleMap delays filling indexCombos_ until requested. This
could have been changed to being done in the constructor. However,
any data already stored may or may not have had indexCombos_ updated
(since indexCombos_ is stored) and therefore we	still must do a
delayed	fill. This is made thread safe via the use of a std::atomic
which keeps track of the state of indexCombos_. The new std::atomic
is declared transient and placed next to bool member data in order
to avoid extra padding by the compiler.
ensure correct replacements for ECAL
fine tuning of the seeding cuts
add Preallocate callback
Drop EcalCalPi0Calib+EcalCalEtaCalib from RECOMIN.

This is required to fix a crash in workflow 11, due to the fact
there are two paths now. See also #1278, #1285.
Merge pull request #1344 from ktf/fix-alca-minbias-ecal-pi0

AlCa fix -- Drop EcalCalPi0Calib+EcalCalEtaCalib from RECOMIN.
Merge pull request #1336 from fwyzard/add_Tracer_Preallocate

Multithreaded framework -- Add Preallocate callback
Merge pull request #1335 from giamman/tracking-emulation-fine-tuning

FastSim update -- Fine tuning of the seeding cuts
Merge pull request #1334 from giamman/preparation-for-new-mixing-part-5

FastSim updates -- ensure correct replacements for ECAL
Merge pull request #1326 from Dr15Jones/threadSafetyFixesDataFormatsL1Trigger

Multithreading fixes -- Fill mutable in L1ParticleMap in a thread-safe way
Merge pull request #1314 from Dr15Jones/threadSafeFixesDataFormatsL1DTTrackFinder

Multithreading fixes -- Classes in DataFormats/L1DTTrackFinder only return const * from const functions
Merge pull request #1313 from nclopezo/threadSafetyStaticsCondCore

Multithreading fixes -- Static fixes for thread safety for CondCore.
Merge branch 'MuonDQM-FixMissingHistos' of github.com:folguera/cmssw into MuonDQM-FixMissingHistos
Fixing compilation problem in latests IB