Migrate travis setup to jip 0.9.2 for python 3 compatablility. Don't use jip to install Jython for build time speedup.

ci/before_install_jython.sh

@@ -1,12 +1,8 @@
 #!/bin/bash
 set -e
 
-pip install jip==0.7
-jip install $JYTHON
-NON_GROUP_ID=${JYTHON#*:}
-_JYTHON_BASENAME=${NON_GROUP_ID/:/-}
-OLD_VIRTUAL_ENV=$VIRTUAL_ENV
-java -jar $OLD_VIRTUAL_ENV/javalib/${_JYTHON_BASENAME}.jar -s -d $HOME/jython
+JYTHON_JAR=$(./ci/mvnget.sh $JYTHON)
+java -jar ${JYTHON_JAR} -s -d $HOME/jython
 
 BEFORE_PY_26=$($HOME/jython/bin/jython -c "import sys; print sys.version_info < (2, 6)")
 if [ "$BEFORE_PY_26" == "True" ]

ci/mvnget.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+ARTIFACT_SPEC=$1
+GROUP_ID=${ARTIFACT_SPEC%%:*}
+NON_GROUP_ID=${ARTIFACT_SPEC#*:}
+ARTIFACT_NAME=`python -c "import re;print re.search(r':(.*):', '$ARTIFACT_SPEC').group(1)"`
+_PATH=${GROUP_ID/./\/}/$ARTIFACT_NAME
+_ARTIFACT_SPEC_BASENAME=${NON_GROUP_ID/:/-}
+VERSION=${ARTIFACT_SPEC##*:}
+echo "Downloading ${ARTIFACT_NAME} version ${VERSION} group id ${GROUP_ID}..." >&2
+wget http://search.maven.org/remotecontent?filepath=${_PATH}/$VERSION/${_ARTIFACT_SPEC_BASENAME}.jar -O ${_ARTIFACT_SPEC_BASENAME}.jar
+echo "...download of ${_ARTIFACT_SPEC_BASENAME}.jar finished." >&2
+echo ${_ARTIFACT_SPEC_BASENAME}.jar