Proof of concept of "responsify" enhancement

**Notes:**
* I started off with just the landing page, and only styled the "homeDiv"s as a proof of concept.
* Started a sass/ dir, which can be compiled with `compass` (or directly with `sass` command)
* Usually I'd be wary of too many tricks with `calc()`, but since I think this will always be in the same browser, it makes things a lot easier. Hence, have really gone to town with the mathhammering..
* CSS output can be more or less compressed, see `sass/config.rb`. Probably wants `output_style = :compressed` for production, especially to kill off the pointless "comments in declarations"...
* Breakpoint set at 800px, could be different maybe. The link to uberserver repo is the only thing that's too big.
* Overall, I'm quite pleased with that!