Fix bad emysql encoding.
Fix bad emysql encoding.

Newest version of emysql introduces client-side encoding of utf8 data.
Switched it to latin1 instead of utf8. utf8 causes across the board
encoding, even of blob binary data, which breaks storing gzip data.
Using latin1 makes Emysql do no encoding so it will work for binary
data and utf8 data.

chef/sqerl,eryx67/sqerl,namjae/sqerl,eryx67/sqerl,chef/sqerl,namjae/sqerl