Run the sanitize_option_* filter for all options in sanitize_option(). Add...

Run the sanitize_option_* filter for all options in sanitize_option().  Add some sanity checks for the permalink options while in there.  fixes #18737

git-svn-id: https://core.svn.wordpress.org/trunk@18738 1a063a9b-81f0-0310-95a4-ce76da25c4cd