Commonmarker API change fixes

Author: olleolleolle

app/helpers/application_helper.rb

@@ -20,7 +20,7 @@ def retrieve_title
   end
 
   def dot_markdown(text)
-    CommonMarker.render_html(text, :DEFAULT).html_safe
+    Commonmarker.to_html(text).html_safe
   end
 
   def belongs_to_group?(group)

config/initializers/haml_markdown.rb

@@ -1,5 +1,5 @@
 # Remove the haml_markdown initaliser. The internals changed so the monkey-patching to implement a custom render method
-# no longer works, but is also not necessary since the markdown filter uses CommonMarker anyway.
+# no longer works, but is also not necessary since the markdown filter uses Commonmarker anyway.
 
 # module Haml::Filters
 #   remove_filter("Markdown") #remove the existing Markdown filter
@@ -8,7 +8,7 @@
 #     include Haml::Filters::Base
 
 #     def render(text)
-#       CommonMarker.render_html(text, :DEFAULT).html_safe
+#       Commonmarker.to_html(text).html_safe
 #     end
 #   end
 # end