Added proguard 4.7 files

please note that proguard is not yet implmented
refs #17

public/proguard/bin/proguardgui.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Start-up script for the GUI of ProGuard -- free class file shrinker,
+# optimizer, obfuscator, and preverifier for Java bytecode.
+#
+# Note: when passing file names containing spaces to this script,
+#       you'll have to add escaped quotes around them, e.g.
+#       "\"/My Directory/My File.txt\""
+
+PROGUARD_HOME=`dirname "$0"`/..
+
+# On Linux, Java 1.6.0_24 and higher hang when starting the GUI:
+#   http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7027598
+# We're using the -D option as a workaround.
+java -DsuppressSwingDropSupport=true -jar $PROGUARD_HOME/lib/proguardgui.jar "$@"