S3 Static Site Deployer

[dillonbailey]

Opening this up to get feedback on whether or not there would be value in replacing gulp-gh-pages with an S3 static site deployment process - or the prospect that deployments are dropped altogether and that is left to the many CI/CD tools that are beginning to gain popularity. For instance yesterday rather than fight with gulp-gh-pages, we just used Codeship to run deployments to our S3 for static site testing.

I would be happy to contribute this enhancement if it is of interest. The rationale for the swap are as follows:

1. The gulp-gh-pages appears fairly abandoned. Most recent updates close to two years ago https://github.com/shinnn/gulp-gh-pages/
2. The AWS eco-system starts to open us up to other more robust features, with S3 for static site hosting as the obvious entry point, I think AWS as a platform can lend a lot of knowledge and learning to users of the package that will extend beyond blendid

Let me know what you think!