Add new rule no-leaking-state-in-program-scope#447

MichalBryxi wants to merge 1 commit intoember-cli:masterember-cli/eslint-plugin-ember:masterfrom

MichalBryxi:no-leaking-state-in-program-scopeMichalBryxi/eslint-plugin-ember:no-leaking-state-in-program-scopeCopy head branch name to clipboard