update Cms::PublicFilter.render_error, add proc object
update Cms::PublicFilter.render_error, rewrite to proc object call
Merge branch 'public_filter' of github.com:gouf/shirasagi into gouf-public_filter
Merge branch 'gouf-public_filter'
rubocop: enable Style/PercentLiteralDelimiters
rubocop: enable Style/BarePercentLiterals, PercentQLiterals, UnneededPercentQ