savonrb/savon — pull request #647 by drn (2014-12-01 19:40:21+00:00)
Title: Add xmlns:wsa to wsa:MessageID.

I was getting 500s from an external API we're trying to integrate with and one of the causes was that the `xmlns:wsa` attribute wasn't set on the `wsa:MessageID` header using the `use_wsa_headers` option.