Hit enter to download as png

Hello @sjkaliski, 

Please review the following commits I made in branch 'thebyrd-download-button'.

df871a9b578eab34d3c620f1553676ee808282b8 (2014-08-13 12:35:56 -0400)
Hit enter to download as png


R=@sjkaliski
VISIBLE_CHANGES=Hit enter to download as png