Making drift velocity calibration more robust Stability of algorithm tested with standard  run production (HVscan): 154793 153116 146859 149102 No single software failuere. The mean fraction of outlyers filtered ~ 5 %.
Making drift velocity calibration more robust
Stability of algorithm tested with standard  run production (HVscan):
154793
153116
146859
149102
No single software failuere. The mean fraction of outlyers filtered ~ 5 %.


Code modifications:
1. Usage of the internal robust option in the AliRelAlegnerKalman.
   Both median and nsignma rejection. 
   
2. Increasing the histogram range for the dZ(6 cm)  and dTheta(0.05) histogramming


shahor02/AliRoot,jgrosseo/AliRoot,shahor02/AliRoot,alisw/AliRoot,shahor02/AliRoot,alisw/AliRoot,miranov25/AliRoot,coppedis/AliRoot,mkrzewic/AliRoot,sebaleh/AliRoot,ALICEHLT/AliRoot,ecalvovi/AliRoot,ecalvovi/AliRoot,shahor02/AliRoot,ALICEHLT/AliRoot,miranov25/AliRoot,jgrosseo/AliRoot,coppedis/AliRoot,miranov25/AliRoot,sebaleh/AliRoot,sebaleh/AliRoot,ALICEHLT/AliRoot,alisw/AliRoot,miranov25/AliRoot,jgrosseo/AliRoot,shahor02/AliRoot,alisw/AliRoot,alisw/AliRoot,miranov25/AliRoot,jgrosseo/AliRoot,ALICEHLT/AliRoot,jgrosseo/AliRoot,coppedis/AliRoot,ecalvovi/AliRoot,alisw/AliRoot,coppedis/AliRoot,ecalvovi/AliRoot,ALICEHLT/AliRoot,sebaleh/AliRoot,mkrzewic/AliRoot,sebaleh/AliRoot,ALICEHLT/AliRoot,shahor02/AliRoot,mkrzewic/AliRoot,jgrosseo/AliRoot,alisw/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot,alisw/AliRoot,ecalvovi/AliRoot,jgrosseo/AliRoot,coppedis/AliRoot,mkrzewic/AliRoot,sebaleh/AliRoot,mkrzewic/AliRoot,miranov25/AliRoot,ecalvovi/AliRoot,ecalvovi/AliRoot,miranov25/AliRoot,miranov25/AliRoot,coppedis/AliRoot,sebaleh/AliRoot,ALICEHLT/AliRoot,shahor02/AliRoot,coppedis/AliRoot,coppedis/AliRoot