Add release notes for Djblets 0.9.3.
Review Request #8123 — Created April 13, 2016 and submitted
This covers the improvements made to the extensions framework for includes and default bundles, fixes for metadata processing, webapi logging additions, and fixes to the config forms.
Built the docs and read through them.
Tool: Pyflakes Ignored Files: docs/releasenotes/index.rst docs/releasenotes/0.9.3.rst Tool: PEP8 Style Checker Ignored Files: docs/releasenotes/index.rst docs/releasenotes/0.9.3.rst