Introducing OCLCNUM normalization service

Thanks for great suggestion by Tod Matola in OCLC, we are introducing an OCLCNUM normalization service as part of xOCLCNUM. -- xOCLCNUM service now accepts different variants of an OCLCNUM, and always return OCLCNUM in same flavor, such as: http://xisbn.worldcat.org/webservices/xid/oclcnum/ocm55847258?method=getEditions&format=xml&fl=lccn,isbn --add a new method to generate different variants of an OCLCNUM. http://xisbn.worldcat.org/webservices/xid/oclcnum/55847258?method=getVariants&format=xml For more information, please check http://xisbn.worldcat.org/xisbnadmin/xoclcnum/api.htm#getvariants