fixed compilation of YACReaderLibrary and YACReaderLibraryServer, removing all the dependecies on QtWidgets from non gui code

YACReaderLibrary/db/data_base_management.cpp

@@ -311,7 +311,6 @@ bool DataBaseManagement::createV8Tables(QSqlDatabase &database)
     return success;
 }
 
-#include <qmessagebox.h>
 void DataBaseManagement::exportComicsInfo(QString source, QString dest)
 {
 	//QSqlDatabase sourceDB = loadDatabase(source);