Minor spelling correction in docs
'getElementsByClassName' doesn't exist in IE8

Fixes #532.
Update commoner to 0.8.8 for Windows support

benjamn/commoner#44 fixed commoner to work on Windows when module path relativization isn't used; with this, the `jsx` binary should work properly on Windows (though `jsx-internal` still won't).

Fixes #316, fixes #391, fixes #567.
Merge pull request #601 from spicyj/commoner-088

Update commoner to 0.8.8 for Windows support.
Merge pull request #589 from balanceiskey/master

Minor spelling correction in docs
Merge pull request #596 from spicyj/gh-532

'getElementsByClassName' doesn't exist in IE8