Update rulesets.js

Added 'Evasion Moves Clause' to enforce the ban of Evasion moves. This mirrors PokeBattle's rules, but does not require 'Evasion Abilities Clause' because only Moody is banned under the Evasion Clause in terms of abilities.
Merge pull request #4 from Kouhai-Senpai/patch-4

Update rulesets.js