It's Elo, not ELO

I like to be correct.
Don't enable if map cycle has no maps data

We need a list of maps to work!
Edit existing timer if we already have it

So it's not destroyed after calling its callback.
Block voting for shuffle after given time

After the round starts, this setting sets how long before votes for
shuffling the teams can no longer be done.
Reworked word wrapping

I'm pretty sure that some people were getting game freezes from this. So
I've rewritten it and tested it at loads of resolutions, and it seems to
be working fine now.
Merge pull request #284 from Person8880/develop

Small stuff