Fix some links to different attributes/methods and tidy up AnimationTimeline.play description

Generated from:

commit dd2a9a744dadf0f9f4cc81067174a983d4638a89
Author: Brian Birtles <birtles@gmail.com>
Date:   Thu Sep 18 09:05:16 2014 +0900

    Fix some links to different attributes/methods and tidy up AnimationTimeline.play description

commit 5ac1faf9bb3af3947aeeee53475e760f6856df80
Author: Brian Birtles <birtles@gmail.com>
Date:   Thu Sep 18 08:39:03 2014 +0900

    Fix some “smart quotes”