Add sabina framework to travis configuration

.travis.yml

@@ -69,6 +69,7 @@ env:
     - "TESTDIR=Java/servlet"
     - "TESTDIR=Java/servlet3-cass"
     - "TESTDIR=Java/spark"
+    - "TESTDIR=Java/sabina"
     - "TESTDIR=Java/spring"
     - "TESTDIR=Java/tapestry"
     - "TESTDIR=Java/undertow"