MyISAM Table Conversion

[eby]

sg_badges and sg_game_codes still need to be converted to INNODB. Right now every select requires a table lock so if there are multiple selects at once on the database, the rest have to wait.

The tables themselves seem small so I can probably plan some quick downtown to alter the tables, but if someone wants to test on their local installs that would be great.

[mswinehart]

I didn't run into any issues locally after altering these tables to use the innodb engine once the prod db sg_ledger was mirrored. I created new badges, new codes, and completed those codes. Everything seemed to work fine.