Enable and Disable Meta Boxes Sitewide on Dashboard, and post/page/link edit forms.

I needed to hide the "Custom Fields" or "Author" meta boxes, and I don't want the primary and secondary dashboard feed meta boxes on any Dashboard.

Toggles the following in WPMU 2.7
  • 'Site Administrator Gets Limited Meta Boxes?',
  • 'Post Publish',
  • 'Post Tags',
  • 'Post Categories',
  • 'Post Excerpt',
  • 'Post Send Trackbacks',
  • 'Post Custom Fields',
  • 'Post Discussion',
  • 'Post Slug',
  • 'Post Author',
  • 'Post Revisions',
  • 'Page Publish',
  • 'Page Attributes',
  • 'Page Custom Fields',
  • 'Page Discussion',
  • 'Page Slug',
  • 'Page Author',
  • 'Page Revisions',
  • 'Link Save',
  • 'Link Categories',
  • 'Link Target',
  • 'Link Relationship (XFN)',
  • 'Link Advanced',
  • 'Dashboard Primary',
  • 'Dashboard Secondary',
  • 'Dashboard Recent Drafts',
  • 'Dashboard QuickPress',
  • 'Dashboard Plugins',
  • 'Dashboard Incoming Links',
  • 'Dashboard Recent Comments',
  • 'Dashboard Right Now',