added fast option, now datasetInfo downloads automatically twiki file
by default get samples file from twiki
Fast option for mergeBabies.py

Merge branch 'mergeWithMaria' of https://github.com/pandolf/cmg-cmssw into ControlVariable
now fast option fill TBranches not tree
not loading full entry anymore in loop
New version of mergeBabies.py
Merge branch 'mergeWithMaria' of https://github.com/pandolf/cmg-cmssw into ControlVariable
cleaning of control variable definition