flexible resolution of namespace
flexible resolution of namespace

resolves in the following sequence: prefix, prefLabel, uri part

for example GET .../namespaces/Affy%20Probeset will resolve after trying
based on prefix

OpenBEL/openbel-api,nbargnesi/openbel-server,OpenBEL/openbel-api,nbargnesi/openbel-server,nbargnesi/openbel-server,OpenBEL/openbel-api,OpenBEL/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-api