Http return code based on SOAP error interceptor

[gr211]

• Http return code based on SOAP error interceptor
• Changed withHeaders() to as() to eliminate warning error

[kustra]

Thanks!
I'm no longer working on the project that needed this library, but I'll schedule a meeting with the guy working on it now and he'll take care of the pr.

[gr211]

Thanks @kustra . Do you have the github url of the new maintainer ? cheers