Update to 3.8
WP 3.8.1
re-pg-ify multi-table deletes

re-cherry-picking the following commits after an overzealous
upgrade:

9c4d5bb cast times
c295b49 put brackets in the right place, genius
64ff79e pg-ify multi-table deletes
Merge branch 'master' into development

Conflicts:
	wp-admin/css/wp-admin.css
	wp-content/plugins/wpro
	wp-content/themes/twentythirteen/404.php
	wp-content/themes/twentythirteen/languages/twentythirteen.pot
	wp-content/themes/twentythirteen/screenshot.png
	wp-content/themes/twentythirteen/style.css
	wp-content/themes/twentytwelve/screenshot.png
	wp-content/themes/twentytwelve/style.css