Merge pull request #16 from monttj/master

it turns out that we need Btag database for top tree: need to figure it ...
Merge pull request #17 from monttj/master

1. remove EventSummaryHistogram in toptree, instead saved those information in runTree: 2. increase checksum number
modify configuration for PAT and top tree to be able to run over FAST SIM sample
Merge pull request #2 from monttj/V5_0_3

modify configuration for PAT and top tree to be able to run over FAST SIM sample