Add an about dialog based on ktikz code

source/app/main.cpp

@@ -23,6 +23,7 @@
  */
 
 #include <QApplication>
+#include "config.h"
 #include "plaYUVerApp.h"
 #ifdef USE_FERVOR
 #include "fvupdater.h"
@@ -36,8 +37,8 @@ using namespace plaYUVer;
 int main( int argc, char *argv[] )
 {
   QApplication a( argc, argv );
-  QApplication::setApplicationName("playuver");
-  QApplication::setApplicationVersion("PLAYUVER_VERSION");
+  QApplication::setApplicationName("PlaYUVer");
+  QApplication::setApplicationVersion(PLAYUVER_VERSION_STRING);
   QApplication::setOrganizationName("pixlra");
   QApplication::setOrganizationDomain("playuver.pixlra");
   plaYUVerApp w;