Merge branch 'release/1.4.1' into develop
refactored datawrapper themes to plugins
removed custom themes from core
refactored core-themes to plugins
using default theme as fallback template
Merge branch 'feature/theme-plugins' into develop
added l10n__domain to template scope
automatically detecting locale domain if not set
added comments for the backtrace hack
removed messages from core locale to plugin locale
updated translations
updated static path for themes
refactoring
fixed template inhertitance for themes
renamed default theme to Datawrapper
fixed race condition
fixed visualize template
fixed admin dashboard
typo
version for theme-default