Merge pull request #27 from godds/release

Hero and footer (and header tweaks)
Added theme view models and scripts to stop knockout errors. Many of these will be unnecessary files now - remove them in future once it works and the dependencies have been figured out / cleaned up.
Initial implementation of the theme preview.
Fixing the theme preview CSS.
Removing unnecessary code.
Merge pull request #28 from ChrisGrant/release

Theme Previews on download page.
Fixed package.json
Merge pull request #29 from ChrisGrant/release

Fixed package.json
features section (responsive)