Add civicrm.config.php.wordpress.

This is used by GenCode and distmaker when running on a WP-only installation (when there is no Drupal)
Merge pull request #29 from totten/4.4-civicrmconfigphp

Add civicrm.config.php.wordpress.
Merge remote-tracking branch 'upstream/4.4' into 4.4-master-2013-11-16-02-27-18