* develop: (25 commits)
  Support embedded data URIs in the list image column type
  Make some adjustments to the readme content
  Update banner in readme
  Add new GitHub banner
  Documentation with icons (#347)
  Limit options shown in group filter, apply scope when retrieving filtered options
  Add Exception on wrong relation type in relation formwidget (#334)
  Redesigned color picker widget (#324)
  Add winter:test command (#202)
  Use the correct backend timezone config key (#337)
  Get changelog only of the current branch
  Fix Markdown editor sizing issue on Chrome.
  Check overrides for parent locale when compiling language files (#242)
  Fixing commas in English translation files (#305)
  Added Latvian translations for Allowed IP messages (#304)
  Add missing filter translations (#303)
  Clean up newlines
  Update Russian language (#302)
  Fix issue present in overriding RelationController partials using the default code
  Maintenance Allowed IP list (#147)
  ...