gexiv2 0.12.0 - 11 Mar 2019

 * Include a test for https://gitlab.gnome.org/GNOME/shotwell/issues/94
 * Disable autoptr test when not running on GCC/Clang
 * Revert symbol hiding script
 * Improve building the vapi using meson's vala support
 * Add canary test for https://gitlab.gnome.org/GNOME/gexiv2/issues/27
 * Promote gexiv2-dump to a tool
 * Documentation fixes
 * flake8 fixes for python code

Bugs fixed in this release:
 - https://gitlab.gnome.org/GNOME/gexiv2/issues/27

All contributors to this release:
 - Jens Georg <mail@jensge.org>
 - Chris Mayo <aklhfex@gmail.com>
 - Marty E. Plummer <hanetzer@startmail.com>