Added property attribute to non-standard attributes

[tacryt-socryp]

Fixes issue #655

[sophiebits]

Mind adding a comment that this is for OG <meta> tags?

[zpao]

And you already signed the CLA. Awesome :)

Let's get the comment in there and then this is good to go. If you want, feel free to amend the current commit and push -f, then the pull request will be updated automatically without multiple commits.

[tacryt-socryp]

How would I go about rolling back the previous two and adding them as a single commit?

[sophiebits]

If you run git rebase -i HEAD~2 then you'll be given an editor with the last two commits -- in this case you probably want to replace the second "pick" with "fixup" or just "f" to combine them.

[tacryt-socryp]

Thank you!

[zpao]

Thanks a lot Logan! I'm going to be out for most of the next 2 weeks, but if you want to pick up some more issues, we'd appreciate the help :) You might be able to get some more immediate assistance in the IRC channel (#reactjs on freenode).