Bugfix: add missing key 'environment'

Ref: AWS-106518201
Bugfix: add depends so recipe can use libraries
Change: remove our attributes override

Issues seem to have been addressed:
https://github.com/aws/opsworks-cookbooks/blob/master-chef-11.4/deploy/attributes/deploy.rb
Bugfix: Chef11 bug
Bugfix: Chef11 syntax
Merge pull request #60 from till/bugfix/opsworks-deployment

Bugfix: add missing key 'environment'