During a needed update to pugixml[1] I inadvertently upgraded OpenImageIO from 1.4.x to 1.5.x and broke soname/ABI compatibility[2].

I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to 1.4.16 to fix this but it will require a rebuild of Blender which I can take care of. 

Any objections?

Thanks,
Richard

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1347390
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1406976