CMSSW_6_2_5

Changes since CMSSW_6_2_5_cand1:

1. 1649 from @qliphy: Create NJetsMCEta.cc created: 2013-12-02 17:50:35 merged: 2013-12-18 14:13:22

2. 1726 from @Martin-Grunewald: Update of frozen 8E33 for GT created: 2013-12-08 19:11:47 merged: 2013-12-18 14:12:59

3. 1727 from @mkirsano: pydata fix2 created: 2013-12-08 19:16:40 merged: 2013-12-18 14:12:26