tweaked profile posted details template

lms/templates/discussion/mustache/_profile_thread.mustache

@@ -4,14 +4,15 @@
         <header>
             <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote"><span class="plus-icon">+</span> <span class='votes-count-number'>{{votes.up_count}}</span></a>
             <h3>{{title}}</h3>
-            <p class="posted-details">
-                <span class="timeago" title="{{created_at}}">{{created_at}}</span> by
+            <p class="posted-details">                
                 {{#user}}
-                <a href="{{user_url}}">{{username}}</a>
+                <a href="{{user_url}}" class="username">{{username}}</a>
                 {{/user}}
                 {{^user}}
                 anonymous
                 {{/user}}
+
+                <span class="timeago" title="{{created_at}}">{{created_at}}</span>
                 <span class="post-status-closed top-post-status" style="display: none">
                     &bull; This thread is closed.
                 </span>