This addresses the side effect I mention below. Basically,I've changed voxelServersExist() so that it does two things... 

1) it makes sure there is at least one voxel server (it always did this)
2) now, it makes sure that for ALL existing voxel servers, IF we have jurisdictions setup (always tree for ACs and Interface) those voxel servers must have a valid jurisdiction on record. 

If any voxel servers are missing their jurisdiction, then we will return false for voxel servers exist.

Note: this also works for single server mode with the default jurisdiction.