streamlined and updated version of configure script. Only incompatibility is

that the shell variable RFIO should point to the directory containing
libshift.a (or lib/libshift.a) and not to the directory itself. Was:
   export RFIO=/home/rdm/shift-1.10.2.9/lib/libshift.a
now:
   export RFIO=/home/rdm/shift-1.10.2.9


git-svn-id: http://root.cern.ch/svn/root/trunk@1136 27541ba8-7e3a-0410-8455-c3a389f83636