1) Fixes Ticket #208
2) Fixes Ticket #190
3) Fixes an unticketed issue where two items could collide when
creating the thumbnail and/or resize. For example, loading a.flv and
a.jpg would have generated the same thumbnail image. This change adds
a random value to the name to avoid conflicts.
4) Added item::__set() to clear the relative path if the name changes
- Show the "Server Add needs configuration" message whenever
there are no paths.
- Un-ajaxify the admin code to remove complexity and allow us to
update the status message as appropriate.
- Rename server_add_admin.html.php to admin_server_add.html.php
for consistency.
- Fix up form to properly display error messages
- Get rid of server_add_dir_list.html.php now that we're
non-ajaxified.
- Change delete <span> to an <a> for non-ajax world.
