SAIL-337 : More changes in the action (condition) definitions

- Add further unit for parameter constraint
- Remove extra parameters from mimetype compare evaluator
- Make madatory script node ref parameter
- Add missing parameter display labels



git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18797 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/action/constraint/ActionParameterConstraintTest.java

@@ -93,6 +93,7 @@ public class ActionParameterConstraintTest extends BaseSpringTest
         testConstraint("ac-mimetypes");
         testConstraint("ac-email-templates");
         testConstraint("ac-scripts");
+        testConstraint("ac-content-properties");
     }
     
     private void testConstraint(String name)