New version of heppy

[cbernet]

Physics objects:

Jets:

• added generic Tagger analyzer
• added utility methods returning number of particles and number of charged hadrons
• components (jet consistituents): the particles in the components are not copied any more in jet deepcopy
• more flexible JetClusterizer interface
• jet charge now computed

Isolation:

• can now define veto area
• bug fix: negative e and mu are not considered as charged hadrons anymore

Analyzers and miscellaneous tools:

• EventByNumber added: select a list of events for processing based on their event number
• EventSkipper added: skip all events before a given one.
• genbrowser : decay_daughters added (get the daughters of a given gen particle).
• ResonanceBuilder can now reconstruct W bosons

CLD detector:

• geometry updated