SS64: Various flexbox pages only cover old spec

[dstorey]

URL: http://ss64.com/css/box-orient.html Position: 10th

Issues:

• Pages cover old properties rather than modern syntax
• No -ms- version either
• No deprecation notice pointing to new versions

Suggested fix:

• Either update current old properties to new syntax
• Or create new pages for the latest syntax and add deprecation warning to current pages.