*bugfix for transpose function for _dcovector and _drovector.
*change the spec of stretch function of dgsmatrix and dssmatrix
*again...
*recover of previous commit mistake
*change some CPPL_DEBUG lines to CPPL_VERBOSE lines.
*add cap to dcovector and drovector for frexable stretching
bug fix for stretch of dgsmatrix and dssmatrix
*bug fix for dssmatrix
dug fix for dssmatrix
*halfway development of dssmatrix
