Added removeDocument and retrain.
fixed the substitution cost for levenshtein distance
break "gloss" into definition vs. examples

The "gloss" attribute in the callback wasn't enough for my project. I've written the code to divide them into a definition and array of examples. Merge if you wish!
had tokens[1] instead of data[1]
Merge pull request #85 from hhamalai/master

Fix the default substitution cost for Levenshtein distance
updated documentation to account for corrected Levenshtein default substitution cost.
ticked 0.1.21
Fix IDF calculation
adding repository to package.json
Merge pull request #99 from mafintosh/patch-1

Adding repository to package.json
Merge pull request #91 from mrksbrndt/master

Fix IDF calculation
removed some overly granular tfidf tests
tickted 0.1.22
added note asking for help!
Fix: wCnt is hexadecimal
http://wordnet.princeton.edu/man/wndb.5WN.html\#sect3
removed tfidf add-one compensation
tfidf smoothed with add-one and tests pass. still going to compare with other impls today
Merge pull request #101 from dbrans/master

Fix: Wordnet wCnt is hexadecimal
in response to #102, removed the +1 and updated the unit tests to test against manual computations on the example from the readme.
Merge pull request #103 from kkoch986/master

in response to #102