Suggest.js: Trigger change event when value is selected.

props obenland.
fixes #26110.
Built from https://develop.svn.wordpress.org/trunk@26333


git-svn-id: http://core.svn.wordpress.org/trunk@26235 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Update the Iris color picker to version 1.0.4, which fixes a jQuery-UI CSS conflict.

props mattheu, mattwiebe.
fixes #26097.
Built from https://develop.svn.wordpress.org/trunk@26334


git-svn-id: http://core.svn.wordpress.org/trunk@26236 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Appearance Themes: Don't show theme actions if the current theme doesn't support menus or widgets.

props MikeHansenMe.
fixes #25949.
Built from https://develop.svn.wordpress.org/trunk@26335


git-svn-id: http://core.svn.wordpress.org/trunk@26237 1a063a9b-81f0-0310-95a4-ce76da25c4cd