Nik's changes, comment out some stuff and changes to make EMu work in event count analyser
lots of deletes and starting to get the structure right, still needs lots of testing
fix EMu selection and put in the rest of the dilepton analysers
changes to photon analyser so that can be used for any selection. Deleted Analyser2s (sorry Nik)
Fix a few extra things so that it runs on pion
added analyser for 1 good photon selection (basically a copy of the TTbarDiLeptonAnalyser with the different cut), put in conversion veto in electron selection
fix bug for MuMu photons
Merge pull request #3 from phy6phs/master

Mass changes to ttgamma code