Bootstrap modules at last

We initialize modules before we set up the user backend and other
singletons. But modules may access those in order to check the
permissions of the authenticated user for example. With this fix,
modules are loaded once all other bootstrap tasks have been completed.

refs #3470

library/Icinga/Application/Web.php

@@ -89,9 +89,6 @@ class Web extends EmbeddedWeb
             ->setupNotifications()
             ->setupResponse()
             ->setupZendMvc()
-            ->setupModuleManager()
-            ->loadSetupModuleIfNecessary()
-            ->loadEnabledModules()
             ->setupRoute()
             ->setupPagination()
             ->setupUserBackendFactory()
@@ -99,7 +96,10 @@ class Web extends EmbeddedWeb
             ->setupTimezone()
             ->setupLogger()
             ->setupInternationalization()
-            ->setupFatalErrorHandling();
+            ->setupFatalErrorHandling()
+            ->setupModuleManager()
+            ->loadSetupModuleIfNecessary()
+            ->loadEnabledModules();
     }
 
     /**