Update server code integration for QtWebApp 1.7.11

- Adapt server code for QtWebapp namespace 'stefanfrings'
- Implement custom modifications needed by v1 controller
  via template engine
- Unify iphone and ipad templates

YACReaderLibrary/server/controllers/v1/librariescontroller.h

@@ -9,7 +9,7 @@
   This controller displays a HTML form and dumps the submitted input.
 */
 
-class LibrariesController : public HttpRequestHandler
+class LibrariesController : public stefanfrings::HttpRequestHandler
 {
     Q_OBJECT
     Q_DISABLE_COPY(LibrariesController);
@@ -19,7 +19,7 @@ public:
     LibrariesController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response) override;
+    void service(stefanfrings::HttpRequest &request, stefanfrings::HttpResponse &response) override;
 };
 
 #endif // LIBRARIESCONTROLLER_H