Merge pull request #1 from jdavis/master
Added Envato Twitter

The red "X"s scared me on the page so I added their Twitter to replace them with a nice button.
Replaced wrong size logos and recompressed everything to save ~250kb
Merge pull request #575 from mxxcon/ImageOptim

Logo optimizations
Merge pull request #572 from jamcat22/patch-2

Added Envato Twitter
Merge branch 'master' of https://github.com/jdavis/twofactorauth