TRD/AliTRDdEdxCalibHistArray.cxx Redefine nbin, min and max in initialization.

TRD/AliTRDdEdxCalibHistArray.cxx       Redefine nbin, min and max in initialization.

TRD/AliTRDdEdxBaseUtils.cxx            Cleanup unneeded include's.
                                       TRD truncation fraction optimized in accordance with RNDClusterQ: 0-0.55.
                                       Bug in FitSlicesY fixed: should set axis following the input th2d y-axis.

TRD/AliTRDdEdxCalibUtils.h             Combine GenerateDefaultOCDB and Output -> GeneratOCDB
TRD/AliTRDdEdxCalibUtils.cxx           GeneratOCDB related.
                                       Qscale and tpcscale both modified.

TRD/AliTRDPreprocessorOffline.cxx      Add fDebugPHQon, if kTRUE, analysis hists and tree will be produced.
TRD/AliTRDPreprocessorOffline.h        fDebugPHQon related.