mpd: Test that "list album foo" responds correctly

Previously, test_list_album_with_artist_name would only test that the
command didn't fail. Now it also checks that the response is correct.
That is, that the response contains albums.

This makes the test detect the error reported in #817.

(cherry picked from commit 9771eda23068f4581a30059ac597f1360d349dcd)
mpd: Fix list commands with 3 arguments (fixes #817)

List commands with 3 arguments should return albums, not artists.

(cherry picked from commit ec413126f1670ccf4f5853e6ee375239cdb374e6)
docs: Add the mpd list command fix to the changelog

(cherry picked from commit 92fa75325d968bb271b8601447080c29bccbde5f)

Conflicts:
	docs/changelog.rst
docs: Fix formatting

(cherry picked from commit 26cfd24e113801b23a00bfb5d6706ee66e643e5b)
docs: Add note Debian package distro support (fixes #820)
log: Don't disable loggers when loading fileConfig

The default when loading config for logging from a file is to disable
existing loggers. Since some loggers are created before logging is set
up, these loggers were disabled if logging/config_file is set.

(cherry picked from commit cb0387c46d7c65d141355ce716764f7b05ef3f3f)

Conflicts:
	docs/changelog.rst
docs: Use :confval:-syntax, add fixes for logging issue

(cherry picked from commit 524043f6b7ee4c3120d6e7e00bad154e4ad82668)

Conflicts:
	docs/changelog.rst
Merge branch 'release/v0.19.x' into develop

Conflicts:
	docs/changelog.rst