1) Reference arrays with tracks and clusters before defined in the AliAODPWG4Particl...

1)  Reference arrays with tracks and clusters before defined in the AliAODPWG4ParticleCorrelatio now will are kept in a TList, the arrays are declared and defined in the corresponding subtask. In this way we can execute different subtasks (Isolation+Hadron Correlation+Jet Correlation) with the same task .

2)  The name of the histograms has changed. The name will begin with a common string for each subtask, for example all the histograms produced by AliAnaPhoton now begin with AnaPhoton_OldName (ex: AnaPhoton_hPt).

3) AliCaloTrackESDReader: Bug in the filling of the track matched indeces corrected.

4) AliAnaPhoton: Possibility to switch on/off the rejection of track matched clusters when PID option is on.

5) AddTaskPartCorr.C: Now it executes the following analysis executing only once the reader: Pi0 invariant mass, photon isolation, photon correlation with hadrons and photon correlation with jets.