Bump ms, gulp-mocha and mocha#55

dependabot[bot] wants to merge 1 commit intomasterJohnPostlethwait/stringify:masterfrom

dependabot/npm_and_yarn/ms-and-gulp-mocha-and-mocha-2.1.3JohnPostlethwait/stringify:dependabot/npm_and_yarn/ms-and-gulp-mocha-and-mocha-2.1.3Copy head branch name to clipboard