Diancie is released

Also add viableMoves and viableDoublesMoves for Random Battle format.
Add event Diancie
Update Metronome
Hyperspace Hole bypasses Substitute
Add /formathelp command

Aliases: /formatshelp and /formats

Displays information about the available formats on the server.
Merge pull request #53 from Zarel/master

Patch 5.0.1