2006.09.25
Replaced calls to pow() by exp(log()) or sqrt(). The function pow() caused
crashes on AIX (see Google for more information about the pow() bug on AIX).
Check for sqrt, log, and exp presence in the math library; don't check pow.
Replaced the ranlib random number generator by a random number generator
written from scratch. Hence, ranlib is no longer needed, and was removed from
the C Clustering Library. The examples were updated accordingly.
