[ENH] HeaderLib: metatags - check if the meta name starts with OpenGraph protocol prefix and use property instead of name if true
[ENH] HeaderLib: metatags - check if the meta name starts with OpenGraph protocol prefix and use property instead of name if true

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@61370 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,tikiorg/tiki,oregional/tiki,oregional/tiki