Use --harmomy in docs examples for cleaner code
Update React.DOM -> React.createElement through docs
Update Animation docs for createElement
Updated Docs for new JSX Changes

Moved non-JSX explanation to Displaying Data.
Overhauled JSX in Depth.
Added JSX Spread Section.
Replace transferPropsTo with transferring props patterns
More Descriptor -> Element renames
Update Docs Navigation
Merge pull request #2413 from LeonFedotov/patch-1

Changing api documentation for jsx transformer
Merge pull request #2414 from benleiken/patch-1

Moved key requirement note into 'getting started'
React.js Conf blog post

Closes #2412
Update Authors & Acknowledgements for 0.12
Update version references in the readme
Update cdnjs link, include jsdelivr in readme
0.12 CHANGELOG
0.12 blog post