Add explination of autoBind to DOM Event Listener tip
autoBind -> Autobinding

We don't use the term autoBind anywhere any more.
docs `select` `value` to control chosen option
Minor spelling correction in docs
make docs jsx compiler highlight transpiled js code
docs add download links for react-with-addons
Fix frontpage example to retain selection
Tweaks to README

Most significant change is updating the leading copy to match #440.
Merge pull request #440 from petehunt/new-taglines

New marketing copy
[docs] Fix download links to addons builds
Fix blog pagination

I missed this in the Jekyll upgrade.
docs tips parent-child communication