kwixer: initial port to BTTF.
kwixer.js: added most of the functionality.

Still having trouble with the template.
Kwixer: Ported to BTTF.
kwixer: removed unused css files and add an image.
kwixer.css: removed font-family from css
kwixer.css: removed more stuff that's unused.
kwixer.js: add "Unrated" in `rating`.
Merge pull request #562 from duckduckgo/jag/bttf/kwixer

Kwixer: Ported to BTTF