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/requestmapper.cpp

@@ -47,6 +47,11 @@
 
 #include "QsLog.h"
 
+using stefanfrings::HttpRequest;
+using stefanfrings::HttpRequestHandler;
+using stefanfrings::HttpResponse;
+using stefanfrings::HttpSession;
+
 QMutex RequestMapper::mutex;
 
 RequestMapper::RequestMapper(QObject *parent)