[SVN revision 27882]
COMP (#6092): Support writing vtkUnstructuredGrid objects

[SVN revision 27889]
COMP (#6092): added missing export macro

[SVN revision 27896]
COMP (#6092): Fixing export of explicit template instantiations

[SVN revision 27897]
COMP (#6092): declare specializations to avoid multiple definitions

[SVN revision 27898]
COMP (#6092): moving template instantiation to header

[SVN revision 28080]
COMP (#6092): Trying to fix duplicate symbol error on Mac

[SVN revision 28081]
COMP (#6092): temporarly disable ug writer test

[SVN revision 28112]
FIX (#6092): Enable ug writer test again, fixing Mac issue.

[SVN revision 28113]
COMP (#6092): Forgot to remove export macro from template

[SVN revision 28114]
COMP (#6092): trigger windows dart client

Resetting all bugs without active assignee flag to "CONFIRMED". Change status to IN_PROGRESS if you are working on it.

What is the status?

Don't know, have to check the tests and the required functionality.

This is now supported with new I/O system.