invoke-0.12.0: docs are missing in source distribution #314
Description
The source-distribution on PyPI (invoke-*.tar.gz) does not contain the "docs" (= sites/docs/) directory. Therefore, it is no longer possible to build the documentation with Sphinx by using the source-distribution.
MANIFEST.in still contains the "recursive-include docs *" line, but docs/ directory was probably moved into sites/ directory.
MAYBE: tox.ini should also contain a test environment to build the docs ;-)
