Move custom styles to the theme stylesheet.
Upgrade colorbox from 1.4.15 to 1.5.9 - Used style: style 1
Put missing slideshow controls back. The default colorbox style doesn't include these anymore.
Datatable settings and variables changed due to datatables upgrade from 1.9.4 to 1.10.0 by webtrees-base.
Media display and/or Shared Note misaligned - following webtrees-base.
Colorbox titles not rendered correctly on RTL - following webtrees-base.
Remove trailing spaces.
Apply new User/Auth classes, following webtrees-base.