edited line search and started with quadratic stuff
util: BinarySerializer serializes and deserializes a file format version tag with every cubbie. This allows keeping old deserialization code around and working even as we improve things.
Merge branch 'master' of https://github.com/factorie/factorie
UsersGuide03Overview: Wording improvements.
Merge branch 'master' of git@github.com:factorie/factorie.git
Tokenizer1: Improve date pattern and add catchAll.
use correct lexicon features
Use more lexicon features
Merge pull request #49 from vineetmundhra/master

use correct lexicon features
add missing BIO chunk type
Span.end: Fix definition to match comment.  Now is index after last
token of span; (was index of last token of span).  Fixed internal usages
for new definition.  WARNING:  If you use Span.end (including
TokenSpan.end) directly, you should fix your code.
Span.value: Now immutable; (was mutable, tracking future changes to
the Span).
Merge branch 'master' of git@github.com:factorie/factorie.git
rename BPFactorTreeSumProduct -> BPFactorSumProduct for consistency
get rid of code duplication, subtle bugs and inconsistencies with null set of varying neighbors and left vs right varying neighbors
get rid of factorNeighborIndex which was not only unused but also being set incorrectly
get rid of bad type bound
fix very tricky bug where single-variable chain BP gives wrong factor marginals and can break learning
max product variable marginals fixed to be one-hots, small tweaks
BP: not using BP summaries for chain max
Merge pull request #1 from alextp/revisit-bp

Revisit bp