Move capistrano support to dotenv-deployment
Deprecate unneeded `dotenv` rake task in rails.
Deprecate ".env.#{Rails.env}"
Update README with link to dotenv-deployment
only warn if dotenv-deployment gem is not loaded
Merge branch 'deployment'

* deployment:
  only warn if dotenv-deployment gem is not loaded
  Update README with link to dotenv-deployment
  Deprecate ".env.#{Rails.env}"
  Deprecate unneeded `dotenv` rake task in rails.
  Move capistrano support to dotenv-deployment
Release 0.11.0