Progressively updating obvious parameters that need easy docs fixes and removing parameters that do nothing. Will edit this when I've done all I want to do on this.
Does anyone know if GravityResolution actually does anything? It appears in several places in the code, but these seem to be only in I/O related things and its value seems to not actually matter (in some places if its value is not the default, 1, then it is briefly modified to be 1 and changed back).
Can someone take a look at this parameter? I'll take care of stripping it if it doesn't do anything.
I'll look into it; I've got some time to kill waiting for the test suite to run. :-)
It is vestigial and can safely be removed.
This is ready to merge. I won't work on this more.