Changes to gen 6 legality checking
- We have a new format flag requirePentagon, which is a slightly less
  strict version of noPokebank that allows Pokebank breeding.
- Unreleased items and abilities are now considered entirely illegal,
  including in Pokebank.
Perish Song is illegal on Gastly in No Pokebank metas

Destiny Bond is fine, it is a level up move.
Add VGC 2014 format
Add the 'Kalos Pokedex' rule
Merge pull request #483 from V4Victini/formats

Add VGC 2014 format
Merge remote-tracking branch 'upstream/master'