add a contact form option

[ilanbiala]

will create a Contact page and set up a form that will send an email to the admin

[ilanbiala]

started with 97da99d, planning on adding support for Mandrill and SendGrid, although they are causing problems right now.

[ilanbiala]

Thoughts on adding styles to the form? I would use Bootstrap or Foundation, but I don't want to force everyone to use one thing or add so many options because of trying to make it better.