API responses do not conform tho Amazon EC2 specifications

The commands AssociateAddress, DisassociateAddress and ReleaseAddress have responses that do not conform to the specification found here:
http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-query-AssociateAddress.html

For example AssociateAddress answers:
<AssociateAddressResponse xmlns="http://ec2.amazonaws.com/doc/2011-12-15/">
  <requestId>59dbff89-35bd-4eac-99ed-be587EXAMPLE</requestId>
  <associateResponse><item>Address associated.</item></associateResponse>
</AssociateAddressResponse>

Answer should be:
<AssociateAddressResponse xmlns="http://ec2.amazonaws.com/doc/2011-12-15/">
  <requestId>59dbff89-35bd-4eac-99ed-be587EXAMPLE</requestId>
  <return>true</return>
</AssociateAddressResponse>

Same goes for the other commands.

This causes the Amazon .net SDK not to be compatible with nova as it throws an exception when trying to parse the answer.