Maybe kind of have a working model instantiation
Fixed serialization for chain model.
Further updates to Chain
Added a new function to TraversableExtras - split.

Split takes a predicate and returns an Iterable of Traversables of all
the elements that satisfy the predicate, as split by all the elements
that don't satisfy the predicate. Concretely `(1 to 20).toSeq.split(_ % 2 ==
0)` will give a list seqs that contain 2, 4, 6, 8, etc.

Useful for partitioning OWPL-style files into seqs of sentences.
Chain command line tool is working, but with poor results
Merge branch 'master' of https://github.com/factorie/factorie

Conflicts:
	src/main/scala/cc/factorie/app/chain/Chain.scala
	src/main/scala/cc/factorie/app/chain/ChainModel.scala
Merge branch 'master' of https://github.com/factorie/factorie
Fixes to initialize blank weights in AdaGrad and ParameterAveraging
Merge branch 'master' of https://github.com/factorie/factorie
initial node stub
Merge branch 'master' of https://github.com/factorie/factorie

Conflicts:
	src/main/scala/cc/factorie/app/chain/ChainModel.scala
Linear Chain command-line tool working
Merge branch 'master' of https://github.com/factorie/factorie into merge-chain-serialization
Merge branch 'merge-chain-serialization'

Conflicts:
	src/main/scala/cc/factorie/app/chain/ChainModel.scala
	src/main/scala/cc/factorie/util/TraversableExtras.scala
	src/test/scala/cc/factorie/TestSerialize.scala
Merge branch 'master' of ssh://github.com/factorie/factorie

Conflicts:
	src/main/scala/cc/factorie/app/chain/Chain.scala
Merge branch 'newhcoref' of https://github.com/harshal-pandya/factorie
Added new deductedDot and deductedCosineSimilarity methods on Tensor.
Currently only used by/efficiently implemented for
ArraySpareIndexedTensor for hier coref bag of words scoring.
Merge branch 'master' of https://github.com/factorie/factorie
Merge branch 'master' of github.com:JackSullivan/factorie
Merge branch 'master' of https://github.com/factorie/factorie