Removing old implementation of photon preselection per Pasquale's
suggestion
First placeholder for setting photon isolation maps
Update instructions to CMSSW_7_0_6
update
correcting typo
turn off photon preselection in python config
Adding a map of (vtx, ChargedPFIso) to the photon object

Compile but crashes at runtime
Now runs correctly (and output correct info)
Implementing preselection as an EDFilter CandViewSelector

incomplete implementation due to crash at run time of the cut parser
when processing getChargedPFIso02(vtx)
new class with photon id tools
added lines in gitignore
added condition on particle id
First implementation of pfIsoChgWrtVtx and pfIsoChgWrtAllVtx with pat::Photon instead of flashgg::Photon for now
add flag to allow tracks to be associated to multiple vertices
Merge pull request #13 from sethzenz/dev_vertex

Code to create, store, and read back vertex-candidate map
merge in from upstream/master
fixed underfined reference error
finished function for iso wrt all vertices
implemented function for pf ecal iso
fixed naming conventions