add user prose styles (bug 668411)

apps/addons/templates/addons/impala/details.html

@@ -153,7 +153,7 @@
   {% if addon.developer_comments %}
     <section class="expando" id="developer-comments">
       <h2>{{ _('Developer’s Comments') }}<a class="toggle" href="#developer-comments"><b></b></a></h2>
-      <div class="content">
+      <div class="content prose">
         <p{{ addon.developer_comments|locale_html }}>
           {{ addon.developer_comments|nl2br }}</p>
       </div>

media/css/impala/prose.less

@@ -0,0 +1,21 @@
+.prose {
+    line-height: 1.2em;
+    ul {
+        list-style-type: disc;
+    }
+    ol {
+        list-style-type: decimal;
+    }
+    li {
+        margin-left: 1em;
+    }
+    b, strong {
+        font-weight: bold;
+    }
+    i, em {
+        font-style: italic;
+    }
+    blockquote {
+        margin: 1em;
+    }
+}

settings.py

@@ -420,6 +420,7 @@ MINIFY_BUNDLES = {
             'css/impala/sharing.less',
             'css/impala/collections.less',
             'css/impala/abuse.less',
+            'css/impala/prose.less',
         ),
         'zamboni/discovery-pane': (
             'css/zamboni/discovery-pane.css',