feat(core): send js errors to API

- catch errors and send them to API so they can be logged

Closes #212

app/scripts/core/exceptions.decorator.ts

@@ -1,11 +1,39 @@
 /* @ngInject */
+
+import IUserService = ngApp.components.user.services.IUserService;
+
 function exceptionDecorator($provide: ng.auto.IProvideService) {
   $provide.decorator("$exceptionHandler",
     /* @ngInject */
-    ($delegate, $log) => {
-      return function (exception: string, cause: string) {
+    ($delegate,
+     $injector,
+     $log: ng.ILogService,
+     $window: ng.IWindowService) => {
+      return function (exception: any, cause: string) {
+        // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#2117523
+        function uuid4() {
+          return 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+            var r = Math.random()*16|0,
+                v = c == 'x' ? r : (r&0x3|0x8);
+            return v.toString(16);
+          });
+        }
+
         // TODO: do whatever you want with errors
-        $log.debug("ERROR:" + exception);
+        var post = {
+          "event_id": uuid4(),
+          "url": $window.location.href,
+          "date": +new Date(),
+          "exception": {
+            "message": exception.message,
+            "stack": exception.stack
+          },
+          "cause": cause
+        };
+
+        $log.debug("ERROR", post);
+        var Restangular: restangular.IService = $injector.get("Restangular");
+        Restangular.all('errors').post(post);
         $delegate(exception, cause);
       };
     }