init components from local clone that is used to produce the test distribition, which itself lacks Admin;

--- a/Admin/isatest/settings/mac-poly-M2	Tue Aug 28 22:16:06 2012 +0200
+++ b/Admin/isatest/settings/mac-poly-M2	Wed Aug 29 11:31:07 2012 +0200
@@ -1,5 +1,9 @@
 # -*- shell-script -*- :mode=shellscript:
 
+init_components /home/isabelle/contrib "$HOME/admin/components/main"
+init_components /home/isabelle/contrib "$HOME/admin/components/optional"
+init_components /home/isabelle/contrib "$HOME/admin/components/nonfree"
+
 ML_SYSTEM="polyml-5.5.0"
 ML_PLATFORM="x86-darwin"
 ML_HOME="/home/polyml/polyml-svn/$ML_PLATFORM"
@@ -24,7 +28,3 @@
 
 ISABELLE_BUILD_OPTIONS="browser_info=true document=pdf threads=2 parallel_proofs=2"
 
-init_components /home/isabelle/contrib "$ISABELLE_HOME/Admin/components/main"
-init_components /home/isabelle/contrib "$ISABELLE_HOME/Admin/components/optional"
-init_components /home/isabelle/contrib "$ISABELLE_HOME/Admin/components/nonfree"
-