Added package.json file

I've created a `package.json` file. This allows you to use `npm install` or `sudo npm install` to grab any packages used in the project. To add packages, type `npm install [package name] --save-dev`. This will automagically update `package.json` (`http-server` has already been added to this, as well as `bower`).

I also created the initial `bower.json` file. This is similar to `npm` but more suited to front-end JS. I've already added `angular`, `angular-route` and `angular-touch` to this one. Typing `bower install` should install everything in a directory called "bower_components".