Updates readme.
Optionally hide folders in the main view.
Place thumbs in subfolder.
Missing semicolon.
Lighter font.
Fix natural sort for file size.
Cleans view styles.
Improves selectors.
Refactors.
Smaller font for costum content.
Fixes hover states.
Styles.
Updates readme.
Prepares release.
Merge branch 'develop'
Sets version to 0.24.0+.
Losslessly compress PNG files.
cosmetics
Update README.md.

* specify the code language used
* Github uses https
* Modernizr is licensed under MIT license
Update package.json.

* add bugs property
* specify minimum node.js version