updated for version 7.3.968
Problem:    Multi-byte support is only available when compiled with "big"
	    features.
Solution:   Include multi-byte by default, with "normal" features.
Added tag v7-3-968 for changeset dfbe53a54c79
updated for version 7.3.969
Problem:    Can't built with Python 3 and without Python 2.
Solution:   Adjust #ifdef. (Xavier de Gaye)
Added tag v7-3-969 for changeset 137f9d41f508