Propagate 'lower' in chol(a, 'lower') to underlying library function. * chol.cc (chol): Send 'L' parameter correctly when chol is called with 'lower'. * floatCHOL.cc (init): Propagate 'lower' to underlying library function. * floatCHOL.h: Modify the prototype of methods. * fMatrix.cc (inverse): Invoke chol with additional parameter. * dbleCHOL.cc (init): Propagate 'lower' to underlying library function. * dbleCHOL.h: Modify the prototype of methods. * dMatrix.cc (inverse): Invoke chol with additional parameter. * CmplxCHOL.cc (init): Propagate 'lower' to underlying library function. * CmplxCHOL.h: Modify the prototype of methods. * CMatrix.cc (inverse): Invoke chol with additional parameter.