Added START=yes to ubuntu default varnish config to support starting varnish via service with Varnish 3.

Issue with drush fixed: Drupal Dev cookbook needed updating because drush location was moved, now we will use drush head to point to correct location.

Modify prefork apache2 configs to have 4 connections instead because it was locking up server with too many concurrent processes.

Move drupal-chef repo to the root directory, these cookbooks are valuable to anyone, not just vagrant, so we are reorganizing to reflect that.

Create seperate roles for common Drupal related servers instead of a monolithic role. drupal_lamp_varnish_dev combines the old base role and default drupal recipe.

Break out pieces of default.rb into seperate recipes.  drupal::drupal_apps creates Drupal compatible web_app for each host (should be a definition), drupal::dev installs hand Drupal development tools and drupal::example creates an example site.

Add default attributes to php.ini file (source: https://github.com/dustincurrie/dustincurrie_cookbooks/tree/master/php)