Removed zlib.  Open pipe based on suffix instead.  Report memory and time only if NDEBUG not defined.  Update _d_memsize only if NDEBUG not defined.
Removed zlib.  Open pipe based on suffix instead.  Report memory and
time only if NDEBUG not defined.  Update _d_memsize only if NDEBUG not
defined.

denizyuret/dlib,denizyuret/dlib