Customizer: Add `height: auto;` for `select[multiple]`.

fixes #27662.
Built from https://develop.svn.wordpress.org/trunk@27954


git-svn-id: http://core.svn.wordpress.org/trunk@27784 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix typo in hook description for `async_upload_{$type}`.
Built from https://develop.svn.wordpress.org/trunk@27955


git-svn-id: http://core.svn.wordpress.org/trunk@27785 1a063a9b-81f0-0310-95a4-ce76da25c4cd
RTL: Fix taxonomy quick edit list alignment.

props SergeyBiryukov.
fixes #27629.

Built from https://develop.svn.wordpress.org/trunk@27956


git-svn-id: http://core.svn.wordpress.org/trunk@27786 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't pass variables by reference.

props markjaquith.
fixes #27656.

Built from https://develop.svn.wordpress.org/trunk@27957


git-svn-id: http://core.svn.wordpress.org/trunk@27787 1a063a9b-81f0-0310-95a4-ce76da25c4cd