Inline documentation for hooks in wp-admin/includes/menu.php.

Also fixes syntax for a few unrelated multi-line comments in the file.

Props kpdesign for some minor cleanup.
Fixes #27430.


git-svn-id: https://develop.svn.wordpress.org/trunk@27670 602fd350-edb4-49c9-b593-d223f7449a82
Remove some debug cruft accidentally committed in [27670].

See #27430.


git-svn-id: https://develop.svn.wordpress.org/trunk@27671 602fd350-edb4-49c9-b593-d223f7449a82