Use words instead of stems in the list of badwords

* "homosexu" was changed to "homosexual"
* "hillbilli" was changed to "hillbilly"

This doesn't change the functionality because STEMMER.stem(w) is
already applied to each word.

While at it, sort the list alphabetically.
Merge pull request #7 from he7d3r/en-badwords

Use words instead of stems in the list of badwords