Formatting
:cop:
Remove dev-tools role

Was unused and now duplicated by fail2ban and ferm
removed ansible_controller
Merge pull request #100 from roots/feature/remove-ansible_controller

removed ansible_controller
Merge commit '0ad90ab0736b1cbf381a80cd5dd3589c69d4c7e0'

* commit '0ad90ab0736b1cbf381a80cd5dd3589c69d4c7e0':
  removed ansible_controller
  Remove dev-tools role
  :cop:
  Formatting