Fixes geerlingguy#30: Make installation of extra utilities optional. 

Readme update. 

Issue geerlingguy#23: Add Windows support via JJG-Ansible-Windows inc… …lusion.

Issue geerlingguy#21: Use YAML for Drush makefile. 

Issue geerlingguy#11: Sync up config and features from acquia-cloud-vm. 

Merge pull request geerlingguy#18 from benjifisher/d7_module_dir D7 custom module directory fix.

Issue geerlingguy#14: Add XHProf and updated README. 

Add hostname to hosts file so things like SimpleTest work. 

Issue geerlingguy#8: Initial file ownership. 

Issue geerlingguy#6: Notes on specifying variables like Drupal version