(refs #341)Fix compilation error other than date mapping and delete statement

src/main/scala/service/ActivityService.scala

@@ -20,7 +20,7 @@ trait ActivityService {
       .take(30)
       .list
 
-  def getRecentActivities(implicit s: Session): List[Activity] =
+  def getRecentActivities()(implicit s: Session): List[Activity] =
     Activities
       .innerJoin(Repositories).on((t1, t2) => t1.byRepository(t2.userName, t2.repositoryName))
       .filter { case (t1, t2) => t2.isPrivate is false.bind }