Fix warnings related to static pages. props zeo for initial patch. fixes #13830.

git-svn-id: https://develop.svn.wordpress.org/trunk@15227 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/includes/schema.php

@@ -314,6 +314,10 @@ function populate_options() {
 	'embed_autourls' => 1,
 	'embed_size_w' => '',
 	'embed_size_h' => 600,
+
+	// 3.0
+	'page_for_posts' => 0,
+	'page_on_front' => 0,
 	);
 
 	// 3.0 multisite