Sergey Biryukov 4b7a9edd27 Reinstate 'install_themes_tabs' filter.
props ghost1227.
fixes #28578.
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git-svn-id: http://core.svn.wordpress.org/trunk@28790 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2014-07-04 23:58:15 +00:00
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