Adds multipart support (SOAP with Attachments) to Savon.
Please test and provide feedback so we can support as many multipart-soap messages as possible.
Recently Savon launched a rewrite that broke compatibility with savon-multipart. If you're using savon version 1, this should just work, but if you'd like to use Savon2, you will probably want to specify something like this in your Gemfile
gem 'savon-multipart', :git => 'https://github.com/tjarratt/savon-multipart.git', :branch => 'savon2'
Savon Multipart is available through Rubygems and can be installed via:
$ gem install savon-multipart