Enabling centos/redhat install.
Adding note about using vagrant to install.sh
Deleting separate drush.yml playbook.
composer is failing to run on centos-7.0 install.  Use the full path.
Making bashrc_path a variable because it... varies.
drush is failing to run on centos-7.0 install.  Use the full path.
Adding extra boxes in comments.
Handle apache 2.4 for Ubuntu 14 and higher.
Use devshop 6.x-1.x now that it works.
Check lsb-release if os-release doesn't exist.
Integers, not strings for < compare.
Adding "creates" for drush install to skip if it's already there.
Adding "aegir_host" as an option to devshop-install because provsion_fqdn() returns the IP address on RedHat servers.
Adding MAKEFILE_PATH variable if  playbook is cloned.