updated tau discriminators
accomodate two possible locations of asrootpy according to rootpy version
new MET Phi correction for 2012 Rereco data
fix to avoid crashes
Added option to force lumi to a certain value, helpful when running without data
added option to run tauSpinner
new overlap points
tauSpinner output
added option to run tauSpinner, and copied the cfi from Christian's tarball.
added option to add extra weights to the FSAEvent
added fully recursive version of the struct
updated muon scale factors to 2012ReReco values
added new PATTuple location
added comment
added option to allow custom skim selection on the ntuples (useful for filtering MC events)
fixed conflicts
switch to das for external dataset bookkeeping, added readme with instructions for PAT-Tuple production
small bugfix
Merge pull request #329 from mverzett/53X_SLC6_Dev

DBS Fix, @mcepeda @dbelknap. Now it's fixed
I always screw up the parenthesis in the .md files