add rebuild_xos and rebuild_synchronizer targets
add rebuild_xos and rebuild_synchronizer targets

jermowery/xos,cboling/xos,jermowery/xos,xmaruto/mcord,cboling/xos,cboling/xos,cboling/xos,xmaruto/mcord,jermowery/xos,cboling/xos,xmaruto/mcord,xmaruto/mcord,jermowery/xos