Screwed up test scripts. Reverted back.

cmake/run_test_package.sh

@@ -5,16 +5,10 @@
 #   calls the command (given as first argument)
 #   with all following arguments
 #
-if [ ! ${DD4hep_DIR} ]; then
-    export DD4hep_DIR=@DD4hep_DIR@;
-fi;
-#
-source ${DD4hep_DIR}/bin/thisdd4hep.sh;
-dd4hep_parse_this ${BASH_ARGV[0]} @PackageName@;
-#
+
 #----- initialize environment for this package - including DD4hep 
-source ${THIS}/bin/this@PackageName@.sh
-#
+source @CMAKE_INSTALL_PREFIX@/bin/this@PackageName@.sh
+
 #----- parse command line - first argument is the 
 #      test to run
 command=$1