Unable to un-dock ships

[dodexahedron]

Reported at http://forum.keenswh.com/threads/mp-mod-dedicated-server-essentials-requires-seserverextender.7174455/page-16

After docking a ship using the /dock dock dockName command, the ship is removed as expected.
However, when trying to restore the ship with /dock undock dockName, the ship does not come back and no notice is given in the game. There is a null reference exception on the console, but it's not very useful.

[dodexahedron]

I've discovered the problem and will be releasing a fix shortly.
It appears the path was broken, when saving the ship content file.
I've fixed the issue in Essentials, and this bug spurred me to open up SEServerExtender/SEServerExtender#15, where I'll be adding in better logging for exceptions in file output.

[dodexahedron]

Fixed in 3e76e4b