Saltstack elasticsearch as job_cache

gistfile1.txt

In my master configuration:

```yaml
master_job_cache: elasticsearch

elasticsearch:
  host: 'eshost:9200'
  index: 'salt_test'
```

Critical error in logfile:

2015-04-27 15:15:48,553 [salt.config      ][DEBUG   ] Reading configuration from /etc/salt/master
2015-04-27 15:15:48,559 [salt.config      ][DEBUG   ] Using cached minion ID from /etc/salt/minion_id: 10.0.0.1
2015-04-27 15:15:48,561 [salt.config      ][DEBUG   ] Missing configuration file: ~/.saltrc
2015-04-27 15:15:48,562 [salt.utils.event ][DEBUG   ] MasterEvent PUB socket URI: ipc:///var/run/salt/master/master_event_pub.ipc
2015-04-27 15:15:48,562 [salt.utils.event ][DEBUG   ] MasterEvent PULL socket URI: ipc:///var/run/salt/master/master_event_pull.ipc
2015-04-27 15:15:48,564 [salt.master                                ][INFO    ] Clear payload received with command publish
2015-04-27 15:15:48,573 [salt.master                                 ][CRITICAL] Unexpected Error in Mworker
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/salt/master.py", line 599, in __bind
    ret = self.serial.dumps(self._handle_payload(payload))
  File "/usr/lib/python2.6/site-packages/salt/master.py", line 651, in _handle_payload
    'clear': self._handle_clear}[key](load)
  File "/usr/lib/python2.6/site-packages/salt/master.py", line 664, in _handle_clear
    return getattr(self.clear_funcs, load['cmd'])(load)
  File "/usr/lib/python2.6/site-packages/salt/master.py", line 2275, in publish
    clear_load['jid'] = self.mminion.returners[fstr](nocache=extra.get('nocache', False),
  File "/usr/lib/python2.6/site-packages/salt/loader.py", line 1357, in __getitem__
    self._load(key)
  File "/usr/lib/python2.6/site-packages/salt/loader.py", line 1334, in _load
    return self._dict[key]
KeyError: 'elasticsearch.prep_jid'