Drupal pull

Hi there,

I've added fingerprints for drupal 6 & drupal 7

Here are some tests I ran:

```
http://opportunity/drupal-7.15/ [302] Drupal[7.15]           
http://opportunity/drupal-7.15/install.php [200] Drupal[7.15]
http://opportunity/drupal-7.16/ [302] Drupal[7.16]           
http://opportunity/drupal-7.16/install.php [200] Drupal[7.16]
http://opportunity/drupal-7.17/ [302] Drupal[7.17]           
http://opportunity/drupal-7.17/install.php [200] Drupal[7.17]
http://opportunity/drupal-7.18/ [302] Drupal[7.18]           
http://opportunity/drupal-7.18/install.php [200] Drupal[7.18]
http://opportunity/drupal-7.19/ [302] Drupal[7.19]           
http://opportunity/drupal-7.19/install.php [200] Drupal[7.19]
http://opportunity/drupal-7.20/ [302] Drupal[7.20]           
http://opportunity/drupal-7.20/install.php [200] Drupal[7.20]
http://opportunity/drupal-7.21/ [302] Drupal[7.21]           
http://opportunity/drupal-7.21/install.php [200] Drupal[7.21]
http://opportunity/drupal-7.22/ [302] Drupal[7.22]           
http://opportunity/drupal-7.22/install.php [200] Drupal[7.22]
http://opportunity/drupal-7.23/ [302] Drupal[7.23]           
http://opportunity/drupal-7.23/install.php [200] Drupal[7.23]
http://opportunity/drupal-7.24/ [302] Drupal[7.24]           
http://opportunity/drupal-7.24/install.php [200] Drupal[7.24]
http://opportunity/drupal-7.25/ [302] Drupal[7.25]           
http://opportunity/drupal-7.25/install.php [200] Drupal[7.25]
http://opportunity/drupal-7.26/ [302] Drupal[7.26]           
http://opportunity/drupal-7.26/install.php [200] Drupal[7.26]
```