Update to pgaccess 0.98.7.

src/bin/pgaccess/README

src/bin/pgaccess/demo/formdemo.sql

src/bin/pgaccess/doc/html/download.html

src/bin/pgaccess/doc/html/main.html

src/bin/pgaccess/doc/html/whatsnew.html

src/bin/pgaccess/lib/forms.tcl

src/bin/pgaccess/lib/help/create_database.hlp

src/bin/pgaccess/lib/help/vacuum.hlp

src/bin/pgaccess/lib/languages/czech

src/bin/pgaccess/lib/languages/deutsch

src/bin/pgaccess/lib/languages/francais

src/bin/pgaccess/lib/languages/italiano

src/bin/pgaccess/lib/languages/magyar

src/bin/pgaccess/lib/languages/portugues

src/bin/pgaccess/lib/languages/romana

src/bin/pgaccess/lib/languages/russian.koi8r

src/bin/pgaccess/lib/languages/russian_win

src/bin/pgaccess/lib/languages/spanish

src/bin/pgaccess/lib/mainlib.tcl

src/bin/pgaccess/lib/preferences.tcl