vchoi_fork

[svn-r10681] Purpose:
	Slight modification.

Description:
	Several constants were added for the scaleoffset filter in
	file H5Zpublic.h and corresponding changes needs to be made
	in H5Zscaleoffset.c.

Solution:
	Slight modification of codes.

Platforms tested:
	heping, shanti

Misc. update: