Merge pull request #1 from johnb30/master

ADD ALL THE THINGS!
Updated sentence segmenter and made some source-specific filtering changes in mongo_formatter.py
Merge pull request #4 from philip-schrodt/master

Updated sentence segmenter and made some source-specific filtering chang...
Extensive text added to README.md, but still needs a little additional work
Merge pull request #5 from philip-schrodt/master

Extensive text added to README.md, but still needs a little additional w...
revision of mongo_formatter

rebased on the current master
Merge pull request #7 from myi100/master

revision of mongo_formatter
Update README