Twenty Eleven: use a filter to modify the output of `wp_title()`. Props obenland, see #23774.

git-svn-id: http://core.svn.wordpress.org/trunk@23718 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Ten: use a filter to modify the output of `wp_title()`. Props obenland, closes #23774.

git-svn-id: http://core.svn.wordpress.org/trunk@23719 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Eleven: use callback in functions.php to enqueue scripts and styles rather than putting them directly in header.php template file. Props obenland, see #23772.

git-svn-id: http://core.svn.wordpress.org/trunk@23720 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Ten: use callback in functions.php to enqueue scripts and styles rather than putting them directly in header.php template file. Props obenland, fixes #23772.

git-svn-id: http://core.svn.wordpress.org/trunk@23721 1a063a9b-81f0-0310-95a4-ce76da25c4cd