* rename functions from setMass/getMass style to mass()/mass() style.
	  Are concerned the following (new names):
	    Metric::mass, Metric::coordKind, Metric::kind, Screen::coordKind,
	      KerrBL::spin, KerrKS::spin
rename RotStar3_1::integKind, RotStar3_1::fileName. Make sure compilation goes fine with HOME_LORENE set.