Requires developer mode: just choose "developer mode" from the extension menu, then choose "load unpacked extension" and point it to the root folder. Done.
##Building Stuff##
This isn't registered in the npm registry, but it uses a package.json file to allow quick installation. Simply run
npm install
This will allow you to build and test. In order to build, you'll edit the various files in lib/, then use gulp to build them. You can also use the npm alias, which is
npm start
If you'd like to run unit tests, you can do so with
npm test
##Viewing Stuff##
You can see the current results of the unit tests and this readme by right clicking the extension icon and then going to "options" to see links to them.