Some more autoreg fixes
Small fix
Prevent browser tab from freezing while submitting
Fix unique_together constraint on StaticInterface
Fix tests
Prefill 'ctnr' field on unbound forms that have it
Make ajax_form_submit use a success callback

...rather than hardcoding the success logic or forcing the AJAX
submission to be synchronous.
Hide 'ctnr' field if session ctnr isn't 'global'
Merge pull request #658 from drkitty/prefill-ctnr-field

Prefill 'ctnr' field on unbound forms that have it. Fully functional, all tests pass.
Add success callback for combined system form submit
Fix issue with multiple checkbox inputs in ajax submit
Merge pull request #673 from church29/DNS-Views2

Fix issue with multiple checkbox inputs in ajax submit
add ctnr field to cydns objects
fix recursive import and field name conflict
migrate CNAMEs with containers
add containers to MX during migration
add ctnr to AR and PTR during migrations
remove custom PTR.filter_by_ctnr
give nameservers a dummy container
refactor ctnr retrieval logic