Specify a bind address for MySQL

So it is possible to connect from the host using a MySQL management tool

Conflicts:
	Vagrantfile
Add drush for Drupal development

From the Drupal Vagrant project, http://drupal.org/project/vagrant

Conflicts:
	README.md
	cookbooks/vagrant_main/recipes/default.rb
Updated drush cookbook
Install graphviz

Hoping call graph generation would work from webgrind. Not quite there yet.

Conflicts:
	cookbooks/vagrant_main/recipes/default.rb
Add a customized webgrind/config.php to get dot-location right

Thanks to @attiks
Merge branch 'eelkeblok-merge'