[zotonic/zotonic] c20609: Add 0.44 release notes

[Marc Worrell]

Branch: refs/heads/0.44
Home: https://github.com/zotonic/zotonic
Commit: c206092a8c9706f4691361a80bac63eed16d9d5c
https://github.com/zotonic/zotonic/commit/c206092a8c9706f4691361a80bac63eed16d9d5c
Author: Marc Worrell <ma...@worrell.nl>
Date: 2019-01-18 (Fri, 18 Jan 2019)

Changed paths:
A doc/developer-guide/releasenotes/rel_0.44.0.rst

Log Message:
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Add 0.44 release notes



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