TinyMCE: attempt a workaround for WebKit bug inserting spans with font styles when creating UL or OL. See #17154

git-svn-id: http://core.svn.wordpress.org/trunk@24211 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use wp_trim_words() in Recent Drafts widget. fixes #24292.

git-svn-id: http://core.svn.wordpress.org/trunk@24212 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't append ellipsis in RSS widget if the entire content is shown. props kovshenin. fixes #21702.

git-svn-id: http://core.svn.wordpress.org/trunk@24213 1a063a9b-81f0-0310-95a4-ce76da25c4cd