Log Message:
Changes 4.44:
The following suffixes for variables and constraints were
implemented in the MathProg language:

.lb     (lower bound),
.ub     (upper bound),
.status (status in the solution),
.val    (primal value), and
.dual   (dual value).

Now the MathProg language allows comment records (marked by
'#' in the very first position) in CSV data files read with the
table statements. Note that the comment records may appear only
in the beginning of a CSV data file.

The API routine glp_cpp to solve the Critical Path Problem was
added and documented.