Add mention of mopidy-convert-config
docs: Fix typo and level of header
docs: Use 'config' more consistently
docs: Remove mixers' module docs
docs: Add section on extension config and disabling
docs: Add glossary (fixes #430)
docs: Add how to get good sound on raspis (fixes: #299)
docs: Review Raspi sound quality howto
docs: Fix typo
docs: Fix dist-upgrade command (fixes #470)
(cherry picked from commit 31ef29e1216a856a3ce72551516ef61ea4af7701)
docs: Fix link to rpi-update
Allow pyspotify 1.9 and higher, including 1.11
Bump version number to 0.14.2
docs: Update changelog for 0.14.2
Release v0.14.2
Merge remote-tracking branch 'mopidy/master'
Merge branch 'master' into develop

Conflicts:
	docs/changelog.rst