Also get more targeted for taxonomy columns. Consolidate column hiding into one rule. props SergeyBiryukov. fixes #26298.

Built from https://develop.svn.wordpress.org/trunk@26454


git-svn-id: http://core.svn.wordpress.org/trunk@26352 1a063a9b-81f0-0310-95a4-ce76da25c4cd