Task: - none
RevBy: - Thorbjørn
AutoTest: - manual
Details: - the docs where unregistered, still the member
had the files saved and tried to unregister again
The previous interface wasn't sufficient to properly support the Apply
button, since it didn't separate applying the changes from the cleanup
phase.
Designer settings pages still need some fixing.
Fixes Apply button causing problems for certain plugins, for example the
QuickOpen.
