Update HLT tau validation configurations to updated HLT tau DQM code
Update DQM and validation quality test xml's
Fix deltaR matching in HLTTauDQMPath.cc

Permit trigger objects to be matched only one reference objects (mask
out already-matched reference objects). Allowing two trigger objects
to be matched to one reference objects can lead to incorrect numbers
in numerator or denominator (e.g. denominator being smaller than
numerator).
Add two LogErrors
Adjust binning, axis labels, and titles of plots
Update DQM and validation example job configuration files
Improve printout
Fix Mu(Loose)Tau regex to find the correct (non-L1-prescaled) path

A better solution would be to look for the prescales of L1 seeds, but
that is left for future improvements.
Add comment for finding first L3 tau filter in unscheduled mode
More coherent error messages
Adjust L1 ET and eta binning to match the possible discrete values
Include L1 central jets after a configurable ET cut to L1(Lead|Second)Tau* histograms