Fix compilation regression from #21.
Remove border surrounding download platform images.
Use the svg images directly on browsers that support them.
Work around broken stroke width on safari in iOS 7.
Overhaul games page.
Add svg logo created by @xanax.
Recreate logo background with a linear gradient.

Embedded images don't render with Safari.
Merge pull request #24 from pchote/more-fixes

More fixes