install.php:
installer.php:
- add option field and handle logic
display.css:
- hardcode ssl's label margin-top value so all options are correctly displayed
Advantages:
* Increases security by preventing direct access to file/
* We are careful and have a defined('GNUSOCIAL') || die() to prevent
direct access to GS files, but we may miss one or a vendor/extlib may
not be as careful
* Improves directory structure - It's more natural to physically
separate what is public from what are GNU social resources