Add lo_server_thread_set_callbacks to liblo.def.
Add lo_server_thread_set_callbacks to liblo.def.

tuscland/liblo,johne53/MB3Liblo,radarsat1/liblo,tuscland/liblo,tuscland/liblo,johne53/MB3Liblo,radarsat1/liblo,johne53/MB3Liblo,radarsat1/liblo,johne53/MB3Liblo