Core Updates: Fix a case where options (db_version specifically) can end up with stale values in the cache after a update is performed. Fixes #26173 for trunk.

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git-svn-id: http://core.svn.wordpress.org/trunk@26346 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix a regression in wp_mkdir_p() where the $mode of the parent folder is not correctly applied to all created paths. Fixes #25822 for trunk

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git-svn-id: http://core.svn.wordpress.org/trunk@26347 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Make sure toolbar reset includes text-shadow: none. props kwight. fixes #25260.

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git-svn-id: http://core.svn.wordpress.org/trunk@26349 1a063a9b-81f0-0310-95a4-ce76da25c4cd