Log Message:
Update ruby-actionwebservice to 1.2.1, required by rails-1.2.1.

Changes since 1.1.6:
* Removed invocation of deprecated before_action and around_action filter
  methods. Corresponding before_invocation and after_invocation methods
  should be used instead.
* Provide access to the underlying SOAP driver.
* ActionWebService WSDL generation ignores HTTP_X_FORWARDED_HOST
* Tighten rescue clauses.
* Fixed XMLRPC multicall when one of the called methods returns a struct
  object.
* Fix invoke_layered since api_method didn't declare :expects.