- Remove "connected tracks" (i.e. track sharing at least 1 cluster in station 3,

- Remove "connected tracks" (i.e. track sharing at least 1 cluster in station 3,
  4 or 5) at the end of the tracking. This allow to remove almost all the fake
  tracks without affecting the good ones.
- New option in RecoParam (RemoveConnectedTracksInSt12(..)) to extend the
  definition of "connected tracks" to the ones sharing at least 1 cluster in any
  station (including station 1 and 2).
- In AliMUONRecoCheck, build the cluster IDs of the simulated tracks by using
  the Detection Element ID stored into the TrackRef. It is used to check the
  compatibility between TrackRef and reconstructed clusters instead of using
  their z position.
- Change the method AliMUONTrack::CompatibleTrack() to also return the number of
  reconstructed clusters. It gives more information to check the compatibility
   between simulated and reconstructed tracks.

(Philippe P.)