[Ready for Review] after role deactivation stop services and remove HA resources

Once that PR is reviewed and accepted, I can start to finish the feature for the other barclamps as well. 
So please have a look at this one, as it will be similar to the other barclamps.
I suggest an "extract temporary variable" refactoring here:

    role_name = "#{resource}-#{main_role}"

since you use it twice, and I'm about to propose a third use.