securesite 5.x-1.3

Important: Due to setting and permission changes, you must make sure that Secure Site is properly enabled and relevant roles have the "access secured pages" permission before Secure Site 5.x-1.3 will work correctly.

- Fixed issue #167918: Cannot log-in under IIS: Document work-around (patch by Junyor)
- Fixed issue #28408: Authentication on PHP/CGI installations: Implement and document work-around for PHP in CGI mode (patch by NaX, Roger López, moshe weitzman, Junyor, et al)
- Fixed issue #268854: Securesite breaks drush due to problem running under cli mode: Allow Secure Site and Drush to play well together (patch by JacobSingh)
- Fixed issue #103268: Log-in dialog is displayed on public page after log-out: Don't show HTTP Auth on logout if login was done using normal Drupal login form (patch by wulff, puregin, leop, NaX, Darren Oh, Gábor Hojtsy, salvis, and Junyor)
- Removed browser logout work-around option: the browser work-around is now always enabled for HTTP Auth (NOTE: You *must* manually change to the HTTP Auth mode for Secure Site to work if you previously used the browser logout work-around option)
- Renamed permission from "access site" to more correct "access secured pages" (NOTE: You *must* manually enable the new permission for relevant roles or only user 1 will be able to access your site)
- Make sure guests are allowed when checking if previous guest can bypass authentication
- Added descriptions to each setting block and separated the guest settings
- Improved watchdog message for anonymous users
- Initial work on unit tests using SimpleTest
- Greatly improved Doxygen documentation
- Code clean-up