Merged CMSSW_5_3_X from repository cms-tau-pog
add isolation for electrons and muons from "boosted" tau -> e and tau -> mu decays:
need to exclude subjet representing 2nd tau when computing isolation of e/mu produced in decay of 1st tau
Merge pull request #1117 from veelken/isolation-for-boosted-taus

Isolation for boosted taus