Background scales and such

Added folder with background images
first iteration of frosted glass effect
Second iteration of frosted glass

can actually display content!
Fluid horizontal scaling
misc. changes
Slight shadow on text

So it shows up on white background
Added more backgrounds just for testing the blur
A few more tweaks on the CSS layout

Also testing pre-blurred image for glass; seems to give better
performance.

I'm thinking it's better to use filters and animate them for the menu
effects instead.
Layout changes

Implementing a few changes from my alternate branch.

No fancy glowing glass here, but it should play more nicely with other
browsers.
Merge branch 'jacob'
Forgot to delete a list element
Merge branch 'jacob'