
The 'sphinxcontrib' is declared a namespace package by setuptools means via pbr. Setuptools 0.7 or later mandates explicit declaration via pkg_resources.declare_namespace (PEP-382). Otherwise refuses to "setup.py build" on systems with setuptools>0.7. Change-Id: If0d214a3b2d148450faa2b09292aafcdcf6837e9