Update OMs

- Remove Sky Battles ladder (and took this opportunity to rename it Sky
Battle)
- Remove Glitchmons
Tournament code no longer overrides BattleRoom.win

Since tournament battle rooms already keep track of the room where the
tournament began, it's possible to have the default BattleRoom.win submit
the results of the battle instead of having to override the function and
still call the old code (very messy).
Merge pull request #1274 from ascriptmaster/tourney-unhook

Tournament code no longer overrides BattleRoom.win
Make Thousand Arrows only ignore Ground immunities

Imitated Scrappy's syntax for letting certain types of moves to ignore
immunities instead of letting all immunities go through.
Merge pull request #1275 from ascriptmaster/thousand-arrows

Make Thousand Arrows only ignore Ground immunities
Fix level scaling for unreleased megas

Reverts f4cd04a651
Independent modjoin/modchat levels

By default, modjoin will still be kept in sync with modchat levels,
but it is now also possible to set a modjoin level independent of
modchat.
Update JSCS options
- Ignore config/config.js
- Ignore line breaks in Windows
Fix /forcerename

It now correctly shows forcerename reason. I also took the opportunity
to update the forcerename text.