Removed hex color shorthand, invalid tag

This code is close to perfect, nice one. Just a few things:
- Some email clients don't support hex notation shorthand (eg. #fff; vs #ffffff;) - updated this
- Was a <td> in duplicate
- Two <br /> tags were in XHTML syntax, although doctype is HTML 4
Now fixed, no sweat!
Merge pull request #2 from roshodgekiss/master

Removed hex color shorthand, invalid tag