Make do-real-tests run with with.clover to allow for test optimisation. Will fix clover instrumenting wrong some other time.

Change-Id: Idd883f1744b8450e7b0d47cd894f7dd211febdd5
Reviewed-on: http://gerrit.dmdirc.com/605
Automatic-Compile: Gregory Holmes <greg@dmdirc.com>
Reviewed-by: Gregory Holmes <greg@dmdirc.com>

build-tests.xml

@@ -82,6 +82,7 @@
             <arg value="-w"/>
             <arg value="5"/>
             <arg value="/usr/bin/ant"/>
+            <arg value="with.clover"/>
             <arg value="do-real-test"/>
         </exec>
     </target>