poll full sync on interval. broadcast messages from background

src/popup/app/current/currentController.js

@@ -86,6 +86,8 @@ angular
         };
 
         $scope.$on('syncCompleted', function (event, args) {
-            setTimeout(loadVault, 500);
+            if ($scope.loaded) {
+                setTimeout(loadVault, 500);
+            }
         });
     });

src/popup/app/global/mainController.js

@@ -15,4 +15,13 @@
                 self.animation = '';
             }
         });
+
+        chrome.runtime.onMessage.addListener(function (msg, sender, sendResponse) {
+            if (msg.command === 'syncCompleted') {
+                $scope.$broadcast('syncCompleted');
+            }
+            else if (msg.command === 'syncStarted') {
+                $scope.$broadcast('syncStarted');
+            }
+        });
     });

src/popup/app/vault/vaultController.js

@@ -109,7 +109,9 @@
         };
 
         $scope.$on('syncCompleted', function (event, args) {
-            setTimeout(loadVault, 500);
+            if ($scope.loaded) {
+                setTimeout(loadVault, 500);
+            }
         });
 
         function getScrollY() {