[OpenBabel-CVS] Open Babel Update

[Chris M. <chr...@us...>]

openbabel ChangeLog
Update of /cvsroot/openbabel/openbabel
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv12156

Modified Files:
	ChangeLog 
Log Message:
added OBCOMMON macro to aid DLL build,
Prevent formats with WRITEONEONLY from writing more than once.