CPPLapack Code

*change some CPPL_DEBUG lines to CPPL_VERBOSE lines.

*add cap to dcovector and drovector for frexable stretching

dug fix for dssmatrix

dssmatrix was renamed to dgsmatrix.
(zgsmatrix is under construction.)

modification to get rid of forbidden codes
*added nullify function for all smart-temporary classes
*put nullify() at the end of shallow_copy functions and shallow copy constructors
*modified destroy function to assign NULL to all pointers

The trunk cpplapack source code was added.