Bump json5, webpack and webpack-cli#22

MeetMartin merged 1 commit intomasterMeetMartin/conditional-expression:masterfrom

dependabot/npm_and_yarn/json5-and-webpack-and-webpack-cli-2.2.2MeetMartin/conditional-expression:dependabot/npm_and_yarn/json5-and-webpack-and-webpack-cli-2.2.2Copy head branch name to clipboard