This reverts commit 018e73e5.

Issue #1256372 - Use drush_sql_read_db_spec with Drush 4.5 or newer to support provisioning Drupal 7 sites.

This reverts commit 86fcb678.

Issue #1173954 - Nginx configuration - Fix support for static robots.txt file, per site, so it checks the site specific file first.

Issue #1182680 - Nginx config fix - better support for backup_migrate module download/restore/delete actions.

Issue #1182582 - Nginx config fix - always send search requests to php-fpm early so searching for node.js will work.

Issue #1183500 - default Nginx vhost should still use IP if available or it no longer works as a default vhost.

Issue #1183500 - Nginx config should fall back to standard wildcard if $ip_address is empty for any reason.

#962188 by crea: Fixed Nginx version check works for server.tpl.php but doesn't work for/in vhost.tpl.php

This reverts commit 37009be3.

we were relying on a function present only in D6 (node_access_needs_rebuild()) - if it is not present, we'll rebuild the node_access tables anyways

This reverts commit 57b40501.