Don't unpack mysql verbosely

I doubt we're interested in the filename of every single file
contained in the mysql archive when it's decompressed.

It bloats up the travis build log.
Update TF2 gamedata.
Update TFCond enum for Mannpower
Denote TFCond multiples of 32 consistently
Merge pull request #232 from FlaminSarge/tf_mannpower_conds

Update TFCond enum for Mannpower.
Merge pull request #230 from peace-maker/mysql_unpack_spam

Don't unpack mysql verbosely in checkout-deps.sh.
Add new and remove old gamerules gamedata for numerous games.
Gamedata cleanup.
Fix build.