Temp8 validation fixing (#2699)

* Showing notifications if any for any response with status 400 >= x < 500.

* fixes valFormManager

* Updates logic for the valpropertymsg.directive to simplify it and so that it doesn't need to query the DOM which was causing issues with timing.

* commits package-lock

* fixes some issues with the securityinterceptor, properly nests promises in contentEditingHelper, fixes errors occuring when not handling promise rejections due to validation problems,

* another unhandled potential validation problem

* Merge branch 'temp-U4-7757' of https://github.com/lars-erik/Umbraco-CMS into lars-erik-temp-U4-7757

# Conflicts:
#	src/Umbraco.Web.UI.Client/src/common/services/umbrequesthelper.service.js

* cleans up the interceptor objects and puts them in appropriate modules and files, centralizes the logic to show notifications so that only happens in one place.

* Fixes more places where notifications were manually shown.

* Fixes validation with the variant publishing overlay and html descrepencies

src/Umbraco.Web.UI.Client/test/config/app.unit.js

@@ -4,11 +4,11 @@ var app = angular.module('umbraco', [
 	'umbraco.resources',
 	'umbraco.services',
 	'umbraco.mocks',
-	'umbraco.security',
+	'umbraco.interceptors',
     'ngCookies',
     'LocalStorageModule' 
 ]);
 
 /* For Angular 1.2: we need to load in Routing separately
 	    'ngRoute'
-*/
+*/