Migration to input tag.
More HI fixes from 5fc337f8feffee62749b5d2e9261b6b79f1ac8b9
Merge pull request #1751 from ktf/fix-HI

More HI fixes.
Add protection against sqrt(negative value) due to numerical rounding effects
Merge pull request #1752 from Martin-Grunewald/FixJetAreaCalculation

Reco fixes -- Add protection against sqrt(negative value) due to numerical rounding effects.
Merge remote-tracking branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X