now also adapt the setup.csh


git-svn-id: https://root.cern.ch/svn/root/trunk@48353 27541ba8-7e3a-0410-8455-c3a389f83636
From Dario, in TDataSetManagerAliEn:
 - fixed-length cache file names to avoid length problems;
 - fixed debug messages;
 - added very important Anchor= option in AliEn find mode.


git-svn-id: https://root.cern.ch/svn/root/trunk@48355 27541ba8-7e3a-0410-8455-c3a389f83636