Tokenizer1: Fix order in which ellipsis pattern appears.
ProportionsVariable: removing unchecked warning
Make Model.factors(Iterable[Var]) the abstract base case rather than
Model.factors(Var).  This will enable more succinct efficient overriding
of Model unrolling.
Note that I have temporarily commented out the test for
DualDecomposition.  I'm getting an infinite loop somewhere I can't find.
Remove InferByEM.  Just use EMInferencer instead.
Merge branch 'master' of github.com:factorie/factorie
infer: fixing issues with DualDecompositionFactor
Model: Further efficiency improvements to factors/addFactors.
Merge branch 'master' of git@github.com:factorie/factorie.git
app.nlp.mention: adding one more catch-all rule to NerAndPronounMentionFinder
Additional UsersGuide documentation, especially in Overview.
Merge branch 'master' of git@github.com:factorie/factorie.git
Removed deprecated ScalaToolsSnapshot
Update README.md

Stating that we depend on mvn 3, not mvn 2. Fixes issue 39.
Creation of executable jars with sbt-assembly. Update of sbt to 0.13.
Merge remote-tracking branch 'upstream/master'
bin/fac inter: will now get you an interactive scala prompt with
factorie and all dependences on the classpath.
Updated README
Merge pull request #41 from oscartackstrom/master

Creation of executable jars with sbt-assembly
Token.nerLabel will select any NerLabel, not just BioConllNerLabel.
DocumentAnnotatorPipeline: Change API slightly for aesthetics. Remove
process method.