Issue with regular expression matching SOAP message (Content-Type)

[Gueryce]

https://github.com/apigee/wsdl2apigee/blob/master/src/main/resources/templates/soappassthru/proxyDefault.xml

Line 8 : !(request.header.Content-Type ~~ "(text|application)/(xml|([a-z]+xml))(;(\w)=(\S*))?") and (request.verb != "GET")

Use : (text|application)/(xml|([a-z]+xml))(;( +|)(\w)=(\S*))? instead.
I 've done several tests and I found a problem with text/xml; charset=UTF-8 (When a space is present, the regular expression doesn't match).