added INPUT for _13TeV worfklows; fixed a couple of mis-matched inputs
Fixed bug where we could return a const & to a temporary

The recent change to getUntrackedParameterSet* to no longer register the default value
to the Registry lead to the bug where if the user passed in a temporary as the default then
that temporary could be returned by const&. If the user's receiving variable is also a const&
then one has an address to a temporary which the compiler can delete after that C++ line ends.
add HLT:@relval,RAW2DIGI,L1Reco to step2Upg2015Defaults: HLT products needed by step3/DQM; L1 and HLT:@relval are best available approx of what would be meaningful menuse for 2015
Merge pull request #615 from Dr15Jones/fixReturnValueForUntrackedParameterSet

Fixed bug where we could return a const & to a temporary from ParameterSet::getUntrackedParameterSet*
Merge pull request #617 from franzoni/13TeV-MC-relvals-pre8ReCycle-70x-UpAndFix-gf2

13 TeV mc relvals pre8 re cycle 70x fixes and updates
Use CMSSW_6_2_0_pre8 datafiles.
Merge pull request #626 from ktf/update-datafiles-PhysicsTools-UtilAlgos

Use CMSSW_6_2_0_pre8 datafiles.