Refactor results into partials

- Changed to accommodate two representations:
    tabular view
    thumbnail view
Add some styling to the navigation bar
Style results
Display correct results view based on thumbnail option
Final tidy up

- Centre image
- constrain image size
Display the relevant icons
Add some options for project extension 

- not part of test evaluation
Merge pull request #2 from Digital-Learner/some-js-and-styling

Some js and styling