New features, new name

## Grunticons
Can't remember why we removed it—I think it had something to do with dependencies. Anyway, I think it's worthwhile having it ready to go since it has been used on every project we've done to date. Further to this, the assets/icons folder has been added to the boilerplate (with a `watch` task attached to it).

## Grunt AWS
Following our experience with this on TEG I figured this one would be a handy default option for deployment. We now have a `credentials.json` file in the root folder where the bucket name/keys/region can be entered without having to traverse the Gruntfile.

## New name + readme
In general, if we are going to make these repos public, it should be documented in a way that suggests anyone could pick it up and start using it. Happy to discuss this if you disagree.