Release 20.9

Added

• Added tagmanager_id theme option to enable Google Tag Manager tracking. Note that tagmanager_id takes precedence over analytics_id. (#63)
• Added one_page theme option, which can be set to True for docs that include all content on a single index page. (#59)
• Added custom 404 page. (#65)
• Added nengo_sphinx_theme.ext.sourcelinks extension which allows the autodoc source links to point to a different site (like GitHub). (#66)

Changed

• Swapped position of "search" and "version" boxes (so search is at the top and version is at the bottom). (#58)
• Added notification when viewing the development version of docs. (#62)

Fixed

• Versions listed in the dropdown will now be sorted correctly by number rather than string (e.g. 1.10 will come after 1.2). (#58)
• Remove empty lines from version dropdown. (#58)