Add "gypsy" to bad word list

[asf-stripe]

As suggested in dariusk/corpora#255 (comment), this word might be worth including here too.

[hugovk]

Oh, I just realised that this runs on substrings, so the existing "gyp" will also exclude "gypsy". Sorry for the confusion, and thanks anyway!

Also note that due to the complexities of the English language, I am considering anything containing the substring of a bad word to be blacklisted. For example, even though "homogenous" is not a bad word, it contains the substring "homo" and it gets filtered. The reason for this is that new slang pops up all the time using compound words and I can't possibly keep up with it. I'm willing to lose a few words like "homogenous" and "Pakistan" in order to avoid false negatives.

[asf-stripe]

Hah, I'd missed that. Thanks for clarifying - sounds like it's covered. I'll close this out, then (:

[dariusk]

I appreciate the pull request regardless!