Custom WSDL actions broken

[aaronchi]

This commit broke my code:
http://github.com/rubiii/savon/commit/64a78c00760c123b65a0528c4d67772f398d368f#comment_47850

response = client.get_clients do |soap|
  soap.action = "http://api.createsend.com/api/User.GetClients"
  soap.input = "User.GetClients"
  soap.namespace = "http://api.createsend.com/api/"
  soap.body = { "wsdl:ApiKey" => token }
end

Used to return results, now gets an error trying to call 'map' on a string

[rubiii]

http://github.com/rubiii/savon/commit/97620673ade2b265cb219d86e0aa6656ad4ec671
this fix will be included in the upcoming release.

[rubiii]

released version 0.7.5 including a fix for this issue.