Replace implicit conversion with implicit class.

src/main/scala/view/helpers.scala

@@ -75,6 +75,7 @@ object helpers {
       // convert commit id to link
       .replaceAll("(^|\\W)([a-f0-9]{40})(\\W|$)", "$1<a href=\"%s/%s/%s/commit/$2\">$2</a>$3").format(context.path, repository.owner, repository.name))
 
+
   /**
    * Returns &lt;img&gt; which displays the avatar icon.
    * Looks up Gravatar if avatar icon has not been configured in user settings.
@@ -101,7 +102,7 @@ object helpers {
   /**
    * Implicit conversion to add mkHtml() to Seq[Html].
    */
-  implicit def extendsHtmlSeq(seq: Seq[Html]) = new {
+  implicit class RichHtmlSeq(seq: Seq[Html]) {
     def mkHtml(separator: String) = Html(seq.mkString(separator))
     def mkHtml(separator: scala.xml.Elem) = Html(seq.mkString(separator.toString))
   }