Merge pull request #97 from csitko/master

Django 1.4.1
removed newlines that were breaking import
adding ActiveDirectory authentication backend
added python-ldap requirement
added ability to use active directory for user registration -- alter user and profile creation and update based on existence of the AD backend in list of AUTHENTICATION_BACKENDS
Base.html, header.html, theme.css, static images, and more!

Worked with Base.html, massaging css, adding in static images and
working with the theme. Added jQuery twitter support via Tweet! plugin.
Mostly CSS related

A few structural HTML things, some cleanup on the twitter front and
some cosmetic changes with CSS.
Quick changes to the signup screen

changes to button styles
Styling and a background transition image

More theme styling and a background image that allows content to have a
consistently black background while providing a slight gradient into
the "little spy guy" at the bottom left.
removed virtualenv files
added bin, lib, and include dirs to gitignore
added view to preview HTML emails for blog posts
fixed #4 lowercase email before building hash for gravatar
fixed #5 added informational text if ldap authentication is enabled
fixed #13 fixed #14 added phone and email for voting
fixed #10 load tweets on the backend and cache in memcache to avoid rate limiting
fixed #15 be more forgiving when looking for images to attach for HTML email
added .Python to gitignore