regular_board

(1) General fix for new topic for installations with a single board
regular_board, _edit, _form, .css

(1) "Overwrites URL" added to image upload to signify that uploading an
image via imgur will overwrite any URL in the URL field.  (2) New users
will see the ability to set a username, email, and password immediately.
(3) CSS 04 (up from 02)