bplist: Improve writing of integer nodes
bplist: Improve writing of integer nodes

libimobiledevice-win32/libplist,Tatsh/libplist,libimobiledevice/libplist,Tatsh/libplist,libimobiledevice-win32/libplist,libimobiledevice/libplist,libimobiledevice-win32/libplist,libimobiledevice-win32/libplist,Tatsh/libplist,Tatsh/libplist,libimobiledevice/libplist