Releasenote translation publishing is being prepared. 'locale_dirs'
needs to be defined in conf.py to generate translated version of the
release notes.
Note that this repository might not get translated release notes - or
no translations at all - but we add the entry here nevertheless to
prepare for it.
Change-Id: I67b2202570e23d3f20f7d132b7d7dbb460a2af3f
Fix several problems, tox -e releasenotes did not run at all.
Fixes:
* Fix version import so that release note building works.
* There's no stable/mitaka branch for watcher, so remove the mitaka file,
otherwise release notes build will fail.
* Add _static directory with empty placeholder for sphinx to run.
Change-Id: Ia4dd2f7a7743dfd7f7022be04552c401ade9953f
