bump to 2.0 version of etcd cook
switch to rubocop
fix FC019 warnings
update kitchen config
 fix kitchen
 update with skel rake
update skel files
bump requirement to 2.1.2 etcd
remove openstack from gem for now
Merge pull request #11 from cloudware-cookbooks/upgrade

use latest etcd (0.3.0) from etcd cook 2.1.1