Import changes from cvs head for calo rechit scalinf and conversion detail view.
Fix crash in detail views -- check if EveView exist.
Merge pull request #1931 from alja/from-CMSSW_7_0_0_pre10

Fireworks fixes -- Fix crash in Fireworks DetailView, import missing changes from CVS head for scaling of RecHits
Merge remote branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X