added support for db.Text even on old sqlalchemy versions and used String for Unicode now as they are rougly the same for convert_unicode connections like the textpress one.
added support for db.Text even on old sqlalchemy versions and used String for Unicode now as they are rougly the same for convert_unicode connections like the textpress one.

mitsuhiko/zine,mitsuhiko/zine,mitsuhiko/zine