Avoiding NPE if either a location/wsdlLocation is not configured on the STSClient

Conflicts:
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/trust/Messages.properties
Fixing problem with IssuedToken policy validation

Conflicts:
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/policy/interceptors/IssuedTokenInterceptorProvider.java
Fixing IssuedToken commit
Recording .gitmergeinfo Changes
Fixing build