Standardize themes admin actions more; tweak visibility and a useless line.

Signed-off-by: Norv <a.w.norv@gmail.com>
Split PackageServers in its own template.

(prepare for a PackageServers area)

Signed-off-by: Norv <a.w.norv@gmail.com>
Add Package Servers admin area.

Signed-off-by: Norv <a.w.norv@gmail.com>