Log Message:
py-docstyle: updated to 3.0.0

3.0.0:

Major Updates
Support for Python 3.3 has been dropped
Added support for Python 3.7

New features
Violations are now reported on the line where the docstring starts, not the line \ 
of the def/class
Updated description of pep257 and numpy conventions
__all__ parsing is now done on a best-effort basis - if __all__ can't be \ 
statically determined, it will be ignored

Bug Fixes
Fixed a false-positive recognition of section names causing D405 to be reported
Fixed a bug where functions that don't end with a newline will sometimes raise \ 
an exception