Unify the konqueror.rc forks again. After the past work on moving filemanagement-specific actions to dolphinpart, there was no real difference left between konq-webbrowsing.rc and konq-filemanagement.rc.

Just the hiding of reload and stop in filemanagement, but those are very useful for remote directories anyway, so let's have them back.

On the other hand konqueror.rc kept rotting away but was still used as default in many places...
So we had bugs like "RMB on a link, the new window has text under icons because it uses konqueror.rc instead of konq-webbrowsing.rc" -- which shows that the konqueror.rc/konq-webbrowsing.rc distinction made no sense either.