Removed unused flags parameter.
Fix scaling with non-unit beta.
Correct error returns.
Fix compilation problems.
Removed unused flag parameter.
Return immediately if zero sized argument matrices.
Changed Error structure.
Error structure changed.
QR decomposition.
New imax() function.
New function CurrentConf().
New error codes.
Refined parameter checking in DecomposeQR().
Added SolveQR().
QR decomposition with compact WY-transformation.
New tests.
Sync with remote.