linkit 8.x-5.0-beta3

Release notes Changes since 8.x-5.0-beta2: by anon: Minor test fixes. by anon: Use separate fields for data attributes in the dialog. by anon: Deleted patch file that was added by misstake. #2789021 by anon: URL substitutions plugins are too ambiguous #2792099 by Pradnya Pingat, anon:[…]