hdf5_ep

[svn-r10218] Purpose: Bug fix

Description:  This commit is actually revision 1.155, which is the 3rd step of
changing conversion test.  It's for conversion from floating-point to integer.

In this step, the source buffer is filled in with normalized and denormalized
floating-point values.  For the normalized values, it starts from FLT(DBL, or
LDBL)_MIN, multiplied by 10(10000 for double, 100000000 for long double) for
the next value, until reaches to FLT_MAX.  For denormalized values, the
exponent part is always 0.  Mantissa part starts with 000...001, 000...011,
000...111, until reaches to 111...111.  The same is with negative values.

There're also fixes in config/hpux11.00 for kelgia where default macro table
size wasn't big enough to handle the big macro in dtypes.c.


Platforms tested: h5committest and kelgia.