Development Alpha 0.11.0

- Added a link to the "logo" placeholder in the header to
allow users to easily return to the homepage.
- Added a link to the "Sign Up Now" button in the homepage CTA which now
brings up the registration modal when clicked.
- The homepage CTA will now only show when the user is NOT logged in.
This will allow us to change the experience for the homepage for users
that are signed in and not signed in. No need to ask them to register
when they are obviously already registered...right?
- Updated the doAjax and removed the refreshPage functions from the
global JS file as they where built specific for the CodeIgniter
framework.