Improved the download button based on DanRabbit's mockup
Added previously forgotten padding to the down arrow in the download button
Updated tagline to remove capitalization and period (because it isn't a sentence)
Changed the site to look more like the mockup.

Added a teal glow in the background
changed the h3 color to black and the paragraph color to gray
and a fancy "cutting edge" section
Fixed possible .donate .amount width regression
Reverted width/padding on the donation input and set box-sizing to content-box to make sure it gets rendered properly everywhere
Merge pull request #49 from devTristan/master

Main page changes to make it look more like the mockup