[Minor] fixed problem with build on mvn cli

The problem was due to a naming problem with the PrivilegeMessages class
and property bundle having the same name and being in the same package.
Moved the properties file now to the resources directory

src/main/java/ch/eitchnet/privilege/i18n/PrivilegeMessages.java

@@ -29,7 +29,7 @@ import java.util.ResourceBundle;
  *
  */
 public class PrivilegeMessages {
-	private static final String BUNDLE_NAME = "ch.eitchnet.privilege.i18n.PrivilegeMessages"; //$NON-NLS-1$
+	private static final String BUNDLE_NAME = "PrivilegeMessages"; //$NON-NLS-1$
 
 	private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_NAME);