Remove cruft from StructuredSVMExample (from back when "margin" was in Example)
initial node stub
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.
Merge remote-tracking branch 'main/master' into main_master

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# especially if it merges an updated upstream into a topic branch.
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cleanup chain model examples
app.nlp.parser: making DepParser1 left-multiply friendly
Merge branch 'master' of github.com:factorie/factorie
app.nlp.pos.POS1: debreaking serialization
app.nlp.pos.POS1: might as well print tokens/sec
Updated split in TraversableExtras to produce an Iterator
added target-accuracy option that will be asserted if you specify
Merge pull request #69 from JackSullivan/merge-traversable-extras

Added a new function to TraversableExtras - split.
app.nlp.parser.DepParser1: better printing
Merge branch 'master' of github.com:factorie/factorie
Updated Serialization on ChainModel to be like other serializations.
Merge branch 'master' of https://github.com/factorie/factorie into merge-chain-serialization
Merge pull request #71 from JackSullivan/merge-chain-serialization

Updated Serialization on ChainModel to be like other serializations.
faster left multiply for rda tensors and tensor2's, remove some duplicated code
Merge remote-tracking branch 'main/master' into main_master

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.
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