OptiWrangler source code
Changing field names to camelCase
Adding an example app
Minor bug fix in the example app
Adding a README file for OptiWrangler. It briefly describes each transform.
Added RNTNTrainer
Added RNTNOps
Added RNTN Utilities
Update RNTNOps.scala
Update RNTNTrainer.scala
Update Utilities.scala
Merge pull request #46 from JithinThomas/optiwrangler-develop

OptiWrangler source code
Merge pull request #47 from dkoeplin/master

Adding RNTN sentiment analysis source to OptiML apps
Added ops to arrays file, fixed descripincies between array buffers and arrays.
Merge pull request #48 from stanford-ppl/arrayBufferTest

Update to arrays.scala
fix NPE when trying to print null to screen in REPL
fix wrong orientation of matrix-vector product in optiml
fix OptiML NPEs for nested vectors / matrices
Adding sparse mmpy.
Added sparse matrix/dense vector multiply.