More lexicon update.
Documentation update: more examples.
Optionally analyze derivational suffix -lA.

        -lA is a productive suffix deriving verbs from a number of
        other word classes. The stems including -lA used to be listed
        in the lexicon (since analyzing this stem causes a large
        number of ambiguous analyses, and -lA does not attach to all
        nouns). However, the suffix is really productive, and it is
        always possible to coin new examples (e.g., `şirinlemek').

        This change set introduces a new option to choose whether to
        analyze -lA or use a set of stems that are listed in the
        lexicon. Analyzing -lA is the default option, which will still
        include some of the `lexicalized' stems with -lA in the root
        lexicon.
New option (ALLOW_mAG) for K->ğ change in -mAK.