Allow translation content styling through scrubber

app/scrubbers/translation_content_scrubber.rb

@@ -0,0 +1,13 @@
+class TranslationContentScrubber < Rails::Html::PermitScrubber
+  def initialize
+    super
+    self.tags = %w( strong em b i p code pre tt samp kbd var sub
+        sup dfn cite big small address hr br div span h1 h2 h3 h4 h5 h6 ul ol li dl dt dd abbr
+        acronym a img blockquote del ins )
+    self.attributes = %w( href src width height alt cite datetime title class name xml:lang abbr style )
+  end
+
+  def skip_node?(node)
+    node.text?
+  end
+end

app/views/admin/translations/show.html.erb

@@ -23,7 +23,7 @@
 
 <%= panel do %>
     <div class="panel-body problem-content">
-        <%= sanitize @translation.content %>
+        <%= sanitize @translation.content, scrubber: TranslationContentScrubber.new %>
     </div>
 <% end %>
 <div class="text-center">

app/views/problems/show.html.erb

@@ -11,7 +11,7 @@
 <% end %>
 <%= panel do %>
     <div class="panel-body problem-content">
-      <%= sanitize @problem.content %>
+      <%= sanitize @problem.content, scrubber: TranslationContentScrubber.new %>
     </div>
 <% end %>
 <div class="text-center">