updated dlib
Added comments clarifying how to handle the MITIE API in a threaded
application.
Added an option to the ner_stream to write outputs to a nice binary file
format.
Fixed compiler error on pre C++11 compilers
Saving the conlleval script in git.
Updated the default tokenizer so that it handles things like St. or Jr.
correctly.
Made the built in MITIE tokenizer deal with () in a reasonable way.
Fixed a bug in the python API that triggered when no entities were
output.