ar --> application_request
DanskeSoapRequest methods are private
ar --> application_request
ar --> application_response
NordeaResponse content --> own_signing_cert
Merge pull request #21 from devlab-oy/joni/cleanup

Cleanup code
Merge branch 'master' into tommi/response-refactoring

Conflicts:
	lib/sepa/application_response.rb
	lib/sepa/banks/nordea/nordea_response.rb