[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.
@aspiers thanks for the hint. 
I tried it and received `Missing revision attribute` Error [here](https://github.com/crowbar/barclamp-pacemaker/blob/release/roxy/master/chef/cookbooks/crowbar-pacemaker/providers/sync_mark.rb#L46)
I commented out 
```ruby
node.delete(resource)
```
but the Error persists.
```ruby
node["keystone"]["crowbar-revision"]
```
is set to `null` some other place, do you have an idea where that could be?