Display last 3 commits for push action in the activity timeline.

src/main/twirl/helper/activities.scala.html

@@ -18,11 +18,15 @@
           }
           case "push" => {
             <div class="small">
-              {additionalInfo.split("\n").map{ commit => 
+              {additionalInfo.split("\n").reverse.take(4).zipWithIndex.map{ case (commit, i) =>
+                if(i == 3){
+                  <div>...</div>
+                } else {
                   <div>
                     <a href={"%s/%s/%s/commit/%s".format(path, activity.userName, activity.repositoryName, commit.substring(0, 40))} class="monospace">{commit.substring(0, 7)}</a>
                     <span>{commit.substring(41)}</span>
                   </div>
+                }
               }}
             </div>
           }