Add link to third-party `JavaScript (JSX).tmLanguage` in docs.
Merge pull request #356 from yungsters/master

Add link to third-party `JavaScript (JSX).tmLanguage` in docs.
Flesh out reference documentation, more API info
Fix DOM node warning

bdf2a9bb124b8fc34120949b322202497741f239 broke the warning that children aren't suppose to be real DOM nodes.
Fix PropTypes Documentation
Merge pull request #351 from spicyj/api-docs

Flesh out reference documentation, more API info