Add the Daily Motion shortlink, dai.ly, to the default oembed provider list.

Props georgestephanis
fixes #24353


git-svn-id: http://core.svn.wordpress.org/trunk@24302 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Pinking shears

git-svn-id: http://core.svn.wordpress.org/trunk@24303 1a063a9b-81f0-0310-95a4-ce76da25c4cd