some code cleanup

Author: rmisio

js/templates/userPage.html

@@ -589,7 +589,7 @@ <h1 class="page-userNameLarge floatLeft fancy-heading fontSize20 colorWhiteForce
   </div>
 </div>
 
-<%= ob.backToTopTmpl() %>
+<%= ob.backToTopTmpl({ className: 'custCol-secondary' }) %>
 
 <div class="overlay overlayObscurring hide js-blockedWarning">
   <div class="modalHolder">

js/views/userPageVw.js

@@ -1773,11 +1773,12 @@ module.exports = baseVw.extend({
   },
 
   remove: function(){
-    baseVw.prototype.remove.apply(this, arguments);
-
     // close colorbox to make sure the overlay doesnt remain open when going to a different page
     $.colorbox.close();
     messageModal.$el.off('click', this.modalCloseHandler);
+    this.scrollHandler && this.$obContainer.off('scroll', this.scrollHandler);
+
+    baseVw.prototype.remove.apply(this, arguments);
   }
 
 });