@divdavem this is definitively an option, I didn't know that Travis is going to run `npm install` by default. So we can remove it from here anyway, right?

As for having a script in `package.json` as compared to running the `grunt` command: I don't have _strong_ opinion. But I do have an opinion :-) Personally I like to have all managed by Grunt as I know that I can see all the build task by looking at one file. With your proposal I need to jump between gruntfile and package json to understand what is going one. 

Not a big deal, thought, just expressing my preference.