add serialization code
add serialization code

nekohayo/pinpoint,robclark/pinpoint,tyll/pinpoint,nzjrs/pinpoint,danigm/pinpoint,bpeel/pinpoint,robclark/pinpoint,potofcoffee/pinpoint,GNOME/pinpoint,GNOME/pinpoint,michaelgwood/pinpoint,danigm/pinpoint,michaelgwood/pinpoint,potofcoffee/pinpoint,nekohayo/pinpoint,nzjrs/pinpoint,robclark/pinpoint,tyll/pinpoint,bpeel/pinpoint