Rename the database entry.

From 'CAPTCHA' to 'CAPTCHA_DISABLED'.
Concat the two strings.
Remove leading tabs.
Make the code more readable.
Make the code more readable.
Make the code more readable.
Remove a leading tab.
Remove a leading tab.
Make the code readable.
I will use the underscore for hidden groups.

Hidden groups are a new concept. They are only visible to admin users. They are
used to post different stuff at different locations. For example there will be
an infobox on the homepage whose content is set via a hidden group.
This field is also unique.

See the file upload/system/controllers/groups_new.php
Typos.
Remove one leading tab.
Make the code readable.
Coding style.
Add a guide.

The coding style is the most important part at the moment.
Remove one leading tab.
Remove one leading tab.
Remove one leading tab.
Make the code readable.