domain 6.x-2.0-rc8

This is a bugfix release. Thanks to the folks who tested rc7.

I think we are just some documentation away from the 2.0 final. I would also like some opinions on #450688: Separate submodule permissions.

New features

-- #490846: Allow batch assignment of users to domains. Batch management of user assignment to domains.
-- #490878: Re-order the batch options page. Make the batch action list easier to read.

Bug fixes

-- #486038: Site status can only be set on batch updating. by mrgoltra. Domain Conf throws away 0 values.
-- #303406: add theme settings configure page to domain_theme, by orangecoat-ciallella. Account for absence of Color module in Domain Theme.
-- #484864: E_ALL warning on domain_theme_update_6200() by dlivingstone. E_ALL notice in domain_theme update hook.
-- #484968: Message at the top of content on non-primary domains. by sn0rcha. Dumb typo in domain_warning_check().
-- #486370: Locale module not handled properly. Locale module needs special handling.
-- #485762: Domain table views try to load NID by BWPanda. Views error in loading NID for domains.