Increased support for three word types and fixed bug.

1) Added support for special case of prcp type words
2) Added support for conjunctive words (and, or)
3) Added support for demonstrative pronouns (this, these)
4) Fixed removing parenthesis as part of punctuation in wikitext clean-up.
Added category description and support for eleven new term categories

1) Abbreviations
2) Adverbs
3) Adjectives
4) Articles
5) Pronouns
6) Numbers
7) Indefinite numerals
8) Interrogative numerals
9) Ordinals
10) Indefinite ordinals
11) Prepositions
Added nine different type of pronouns.