QPIDJMS-308: add temporary repo config for proton-j staging repo
QPIDJMS-308: add temporary repo config for proton-j staging repo

gemmellr/qpid-jms,tabish121/qpid-jms,apache/qpid-jms,tabish121/qpid-jms,gemmellr/qpid-jms,apache/qpid-jms