reimplementaion of fix for QColorDialog on macOS Sierra bug.

doesn't use destructor because destructor causes another crash.

YACReaderLibrary/server/controllers/librariescontroller.h

@@ -0,0 +1,25 @@
+#ifndef LIBRARIESCONTROLLER_H
+#define LIBRARIESCONTROLLER_H
+
+#include "httprequest.h"
+#include "httpresponse.h"
+#include "httprequesthandler.h"
+
+/**
+  This controller displays a HTML form and dumps the submitted input.
+*/
+
+
+class LibrariesController : public HttpRequestHandler {
+    Q_OBJECT
+    Q_DISABLE_COPY(LibrariesController);
+public:
+
+    /** Constructor */
+    LibrariesController();
+
+    /** Generates the response */
+    void service(HttpRequest& request, HttpResponse& response);
+};
+
+#endif // LIBRARIESCONTROLLER_H