Add Weka wrapper code.
Add weka subproject to Build.scala
Add specs2 and junit deps to weka subproject.
Change WekaInstanceConverter to better wrap weka Instances.
Add WekaConfidenceFunctionTest.
Factor out common classifier training code to WekaConfidenceTrainer.
Rename WekaTrainers.scala to WekaConfidenceTrainers.scala
Update to GPL3 License
Implement WekaConfidenceFunction.save
Remove trailing whitespace.
Rename WekaInstanceConverter to WekaInstanceCollection, add comment.
Add comments.
Merge pull request #15 from rbart/weka-conf

Add wrappers for Weka classifiers