PROTON-506: Fix C address URL parser to correctly identify the host component if there is an '@' character in the path component.
PROTON-506: Fix C address URL parser to correctly identify the host component
if there is an '@' character in the path component.

git-svn-id: 33ed6c3feaacb64944efc691d1ae8e09b17f2bf9@1576091 13f79535-47bb-0310-9956-ffa450edef68

astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old,astitcher/qpid-proton-old