Add full-text indexing to sufia (from ScholarSphere)

refs gwu-libraries/gw-sufia#80
It might be better to fetch the jars from a maven repo (e.g. http://search.maven.org/remotecontent?filepath=org/apache/james/apache-mime4j-core/0.7.2/apache-mime4j-core-0.7.2.jar) instead of putting them in here.