fix bug storing image logger setting
fix bug storing image logger setting

OpenPHDGuiding/phd2,simonct/phd2,simonct/phd2,OpenPHDGuiding/phd2,simonct/phd2,OpenPHDGuiding/phd2,simonct/phd2,simonct/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,simonct/phd2