granted sudo privileges to ansible user
install ansible using python package manager, pip
removed unnecessary conf.d/downloads
update changelog and readme for beta3 release
create default /etc/ansible/hosts
added turnkey-update command
added USAGE.rst
added default ansible.cfg
installed sshpass required by ansible for scripting passwords
link readme.rst to usage.rst
changed beta3 to rc1
updated usage.rst
changed version number to 1.6.xx to reflect rapid release cycle
Merge branch 'release/rc1'