Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'gh-pages'
Vanilla <td>'s replace Bulletproof Buttons

Bulletproof Buttons (button.cm) have click and tracking issues with
Outlook. I replaced them with <td>'s with background colors. Buttons
degrade gracefully, as some clients don’t support border-radius or
background images, though the anchor text and background color display
universally.