Yorick routines defined in file rkutta.i

B	+++		mod_midpt	rk_maxstep	rk_store
	bs_integrate	R	+++	rk_minstep	rkdumb
	bsstep		rk4	rk_nbad	rkqc
	bstoer		rk_integrate	rk_ngood	rkutta
M	+++		rk_maxits	rk_nstore	rzextr