Add support for spinners for list items in configforms.

Review Request #5598 — Created March 7, 2014 and submitted — Latest diff uploaded

Information

Djblets
master
bafff35...

Reviewers

This brings over RBCommons's list item spinners, but makes their
presence dynamic. A ListItemView subclass can now call showSpinner() to
cause a spinner element to fade in, and hideSpinner() to fade it out and
remove it.

In a ListItemView subclass in some new code, I showed the spinner before calling
an AJAX operation, and hid it after it completed. Saw the spinner fade in and then
out.