use Activity.backward() for back (no recursion); works for catalog + detail

plugin.js

@@ -115,7 +115,7 @@
                         var m = comp._movies ? comp._movies.find(function (x) { return x.id === id; }) : null;
                         if (m) openMovie(m);
                     },
-                    back: function () { Lampa.Activity.back(); },
+                    back: function () { Lampa.Activity.backward(); },
                     gone: function () { Lampa.Controller.clear('content'); }
                 });
                 Lampa.Controller.toggle('content');
@@ -223,8 +223,7 @@
                         Lampa.Controller.collectionFocus(btns[0], $('.mymovies-detail .detail-actions'));
                     },
                     back: function () {
-                        Lampa.Controller.clear('mymovies_detail');
-                        Lampa.Activity.back();
+                        Lampa.Activity.backward();
                     },
                     right: function () { Navigator.move('right'); },
                     left: function () { Navigator.move('left'); },