Rename header.scala.html to menu.scala.html

src/main/twirl/issues/issue.scala.html

@@ -9,7 +9,7 @@
 @import context._
 @import view.helpers._
 @html.main(s"${issue.title} - Issue #${issue.issueId} - ${repository.owner}/${repository.name}", Some(repository)){
-  @html.header("issues", repository){
+  @html.menu("issues", repository){
     @tab("issues", repository)
     <ul class="nav nav-tabs">
       <li class="pull-left"><a href="@url(repository)/issues"><i class="icon-arrow-left"></i> Back to issue list</a></li>