Updated the progaurd conf files

closes #107

Signed-off-by: Ricky Barrette <rickbarrette@gmail.com>

LocationRinger/project.properties

@@ -9,7 +9,7 @@
 
 android.library.reference.1=../../exception_handler_library/ExceptionHandlerLib
 android.library.reference.2=../../location_library/LocationLib
-#proguard.config=proguard.cfg
+proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard.cfg
 # Project target.
 target=Google Inc.:Google APIs:15
 manifestmerger.enabled=true