Downgrade jip as it seems to be incompatible with current build config

.travis.yml

@@ -38,7 +38,7 @@ before_install:
 
 install:
   - if [ "$JDBC_DRIVER" == "org.jaydebeapi:mockdriver:1.0-SNAPSHOT" ]; then (cd mockdriver && mvn install) ;fi
-  - if [ -n "$JDBC_DRIVER" ]; then envsubst < ci/dot_jip > $VIRTUAL_ENV/.jip && pip install jip==0.9.9 && jip install $JDBC_DRIVER && export CLASSPATH=$VIRTUAL_ENV/javalib/* ;fi # TODO: Fix jip to search for local maven repo without twaking .jip
+  - if [ -n "$JDBC_DRIVER" ]; then envsubst < ci/dot_jip > $VIRTUAL_ENV/.jip && pip install jip==0.9.3 && jip install $JDBC_DRIVER && export CLASSPATH=$VIRTUAL_ENV/javalib/* ;fi # TODO: Fix jip to search for local maven repo without twaking .jip
   - source $HOME/myvirtualenv/bin/activate
   - pip install -e .
   - if [ -z "$JYTHON" ]; then pip install coveralls ;fi