sferik/rails_admin — pull request #1596 by virtax (2013-04-05 10:47:02+00:00)
Title: Allow adding HTML to  errors[:base] messages

This will allow to use links in errors[:base] messages like this:
errors[:base] << "Please fix this object first: #{channel_name}".html_safe

P.S. Simple adding .html_safe to the end of the message doesn't works