create common role, use git and handlers for main webworker deployment, create webworker dependency on common role
roughed in rolling update, renamed production.yml to deploy_production_webworker.yml
seeding a couple of readmes around
add rolling upgrade mechanism, include note to change to regexp
add more context to readme
adding more readme
accept_hostkey will save more heartache than is right
add pip install handler to webworker role, further work needed
additional notes, add proxy play to webworker playbook
Update README.md
clean up tasks for common role

 * prevent adding of special cchq sudoers setup from overwriting existing sudoers configuration.
 * set sudo for actions that require it
 * fix user and group adding
fix templating problems in sudoers.j2, dev_users is a list of dicts, we must treat is as such
fix designation of dev_users so we can access attributes individually in tasks and templates
work on webworker installation tasks
establish minimal apache role.  May eventually want to delete this and use one from ansible galaxy, but maybe not.
minimal supervisord role
vars used by the webworker role only
add a top-level playbook for a staging webworker.
engage local settings via group vars
add this to allow webworker handlers to run properly