Rewrote verbal morphology.

Changes include:
- added personal marking and a slightly better description of the
  trigger system.
- the copula is no longer a biliteral stem.
- examples of soft and weak roots
More updates.

PHONOLOGY
- Added the phoneme /dʒ/ [ʒ] ‹ž› so affricates now have a voicing
  distinction.

NOMINAL MORPHOLOGY
- Rewrote a lot of nominal declension, including suffixed articles.
- Pronouns now decline like ordinary nouns; the suffix forms are used
  only for possession and a few other cases.
- Changed the demonstrative pronouns. Less diphthongs = more good

OTHER
- Eliminated the paragraphs I didn't like in the Morphological Typology
  chapter, as I really didn't like the wording of that.
- Reformatted most of the source files. I don't know why I had leading
  indentation.