Now nc_test PASSES

[Jianwei Li]

Good news. 

Now nc_test can pass successfully except 2 FAILUREs that depend on how 
to report errors.

In addition to those problems I reported last time (2 weeks ago?), I 
figured out a couple of more problems summarized as follows:

1. In read/write of the header part, there are some bugs in dealing 
   with attribute values, like padding for 4-byte-alignment. Now I've 
   fixed them.
   
2. In nc_test code, I think rob had disabled some test code in earlier 
   stage of debugging. After enabling those necessary for generating
   correct&expected "scratch.nc", the errors are gone.
   
I have committed my modifications into cvs, and files that are affected
this time are:
	parallel-netcdf/src/lib/header.c
	parallel-netcdf/src/lib/nc.h
	parallel-netcdf/test/nc_test/nc_test.c
	parallel-netcdf/test/nc_test/test_get.m4
	parallel-netcdf/test/nc_test/test_put.m4
	parallel-netcdf/test/nc_test/test_write.c

Now, what are left in nc_test are tests of "put/get schar/uchar/long",
which have not been included in current library implementation, I'll 
add those functions when I have time. For now, everything looks good?

--

Jianwei