Updated icons on main navigation menu
Added transition between main content and signup form, fixed font link
Minor changes to landing page text content
Merge branch '3-0-dev' into 3-0-stable
Added user count to show progress throughout the survey migration task
Updated fonts for first and last slide -- more personalized
Version 3.0.0 finalized
Version bump to 3.1.0.pre
Added missing team.css page
Added concepts for community tracker and partner branding
Added files necessary for new Steering Committee page (stealth_steering)
Surveys linked on the home page have been updated to better show a member's progress through the available surveys, closes myapnea/www_myapnea_org#167.
Refactored and simplified home page UI a bit

Also removed list of surveys when not logged in as per @krand7's suggestion
Administrators can export users to update MailChimp lists and segments, closes myapnea/www_myapnea_org#158.
Community banner now shows four actual member pictures
Updated text to indicate the prize is a Visa Gift card
Updated the Rank the Research Text on the home page
Year of Birth is now a drop down list to avoid confusion between entering Birth Date instead of Year of Birth, closes myapnea/www_myapnea_org#168.
Added some content links to registration and sign in pages to highlight links better, addresses myapnea/www_myapnea_org#125.
Signup/login functionality added to landing; tweaked community tracker and partners