Use bower to install fastclick.js

Removes the changes noted in #40 inline comments. I'm not sure why the second parameter needs to refer to the bower_components path.

    appendStyles(html, optimizedPath, sourceFileList, attrs)

- Add fastclick as a bower dependency
- Extract main.js into a template file
- Merge fastclick.example.js with main.js
- Bump Pure framework version to 0.4.2 because 0.2.0 does not include pure.css as expected by #35