Include helpdesk tests in ci script

ci/tests.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-TEST="$(which snf-manage) test api db logic plankton vmapi im --settings=synnefo.settings.test"
+TEST="$(which snf-manage) test api db logic plankton vmapi im helpdesk --settings=synnefo.settings.test"
 
 if coverage >/dev/null 2>&1; then
   coverage run $TEST