Please update dependencies

[westlakem]

npm WARN deprecated gulp-util@3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
npm WARN deprecated graceful-fs@3.0.11: please upgrade to graceful-fs 4 for compatibility with current and future versions of Node.js
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated graceful-fs@1.2.3: please upgrade to graceful-fs 4 for compatibility with current and future versions of Node.js

[stevejhiggs]

Thanks for the heads up. I've removed all the usage of gulp util in this package and those changes are in the newly published 2.0.0 version. Unfortunately gulp-install, one of the dependencies still uses it. There is an outstanding issue to fix this slushjs/gulp-install#53 but it doesn't show much sign of getting merged. If it's not merged in the next few weeks I'll look to move away from using gulp-install.

I'll keep the issue open until I make a decision