try droppable application using Platypus functionality -- in contrast to earlier AppHack (cf. 9343d4b7c5bf);
--- a/Admin/MacOS/App1/mk Mon Jul 23 18:15:05 2012 +0200
+++ b/Admin/MacOS/App1/mk Mon Jul 23 18:21:26 2012 +0200
@@ -10,6 +10,8 @@
-a Isabelle -u Isabelle \
-I "de.tum.in.isabelle" \
-i "$THIS/../isabelle.icns" \
+ -D -X thy \
+ -Q "$THIS/../theory.icns" \
-p /bin/bash \
-R \
-o None \