Copy o' mysql5 tables with binary encoding instead of utf8 for most tables.

Copy o' mysql5 tables with binary encoding instead of utf8 for most tables.
This should be friendlier to backups and other apps sharing data than the
latin1 default we assume for old schema, or the bizarre semi-utf8 explosions
that sometimes happen, while being safer for full UTF-8 data than mysql's
broken UTF-8 support.

Did a quick test, can save pages with 4-byte chars in the title. whee
Might want to reorganize the schema files and make this this default
for mysql 4.1/5.0, and make some kind of clean upgrade method. :P