ln → util Relation

File in include/line/solvers/ln	Includes file in include/line/util
lqn_analyzers.h	error.h
lqn_analyzers.h	matrix.h
lqn_helpers.h	error.h
lqn_helpers.h	matrix.h
solver_ln.h	error.h
solver_ln.h	expm.h
solver_ln.h	linalg.h
solver_ln.h	line_console.h
solver_ln.h	matrix.h