This should take care of most of the class property conversions to
use the new annotation format (colon instead of equals) for
assignment. There may still be a few edge cases that were missed.
Bumped version to 0.3.1
As a part of the task T50726:
Update the Panel rename code to more generic one
Pep8 cleanup
Replace star imports
Consistent property definitions
Add the missing property deletion on unregister
Fix crashes with missing brackets around CANCELLED
Add an name to the generated Empty handler
Update wiki link
Python 3.4.0 deprecated the "imp" module, and replaced it with
"importlib". This changes imp.reload() into implib.reload().
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D1016