Updated tests to use an environment variable to point to the test_data directory.  Also updated the build.xml file so that tests can be run with 'ant test'.  I don't think this is the most attractive testing interface, but it makes the tests portable.  (They definitely were *not* before.)

Also. Refactored the Syllabifier to allow for multiple syllabification algorithms.
Included a EM Based syllabification routine.  My intuition is that this might be worse than the Villing approach. It's certainly slower.
included consensus net test file
Merge branch 'master' of github.com:AndrewRosenberg/AuToBI