The stop is pending, it's not actively stopping
The stop is pending, it's not actively stopping

https://bugzilla.redhat.com/show_bug.cgi?id=1481800

The worker is probably working on a queue message that takes a long time
so we let it try to complete this work item and have a follow up work
item where we ask the worker to exit cleanly on it's own.  "Stop pending"
better describes this graceful worker exit workflow.

```
** Using session_store: ActionDispatch::Session::MemCacheStore
Checking EVM status...
 Zone    | Server | Status  |            ID |   PID |  SPID | URL                     | Started On           | Last Heartbeat       | Master? | Active Roles
---------+--------+---------+---------------+-------+-------+-------------------------+----------------------+----------------------+---------+-----------------------------------------------------------------------------------------------------------------------------------------------------
 default | EVM    | started | 1000000000001 | 38192 | 38206 | druby://127.0.0.1:50844 | 2017-07-07T21:29:20Z | 2017-07-07T21:32:34Z | true    | automate:database_operations:database_owner:ems_inventory:ems_operations:event:reporting:scheduler:smartstate:user_interface:web_services:websocket

 Worker Type      | Status       |            ID |   PID | SPID  |     Server id | Queue Name / URL    | Started On           | Last Heartbeat       | MB Usage
------------------+--------------+---------------+-------+-------+---------------+---------------------+----------------------+----------------------+----------
 MiqGenericWorker | stop pending | 1000000000207 | 38374 | 38380 | 1000000000001 | generic             | 2017-07-07T21:32:19Z | 2017-07-07T21:32:33Z |      245
 MiqUiWorker      | started      | 1000000000206 | 38234 |       | 1000000000001 | http://0.0.0.0:3000 | 2017-07-07T21:29:21Z | 2017-07-07T21:32:34Z |      533
```

josejulio/manageiq,gmcculloug/manageiq,lpichler/manageiq,yaacov/manageiq,tinaafitz/manageiq,ManageIQ/manageiq,pkomanek/manageiq,tzumainn/manageiq,yaacov/manageiq,gerikis/manageiq,jrafanie/manageiq,tinaafitz/manageiq,agrare/manageiq,jntullo/manageiq,NickLaMuro/manageiq,skateman/manageiq,chessbyte/manageiq,borod108/manageiq,NickLaMuro/manageiq,pkomanek/manageiq,tzumainn/manageiq,yaacov/manageiq,billfitzgerald0120/manageiq,agrare/manageiq,chessbyte/manageiq,ailisp/manageiq,josejulio/manageiq,israel-hdez/manageiq,gerikis/manageiq,branic/manageiq,tzumainn/manageiq,jrafanie/manageiq,jntullo/manageiq,agrare/manageiq,israel-hdez/manageiq,aufi/manageiq,d-m-u/manageiq,romanblanco/manageiq,kbrock/manageiq,mkanoor/manageiq,gerikis/manageiq,djberg96/manageiq,syncrou/manageiq,jntullo/manageiq,israel-hdez/manageiq,chessbyte/manageiq,gmcculloug/manageiq,andyvesel/manageiq,lpichler/manageiq,djberg96/manageiq,billfitzgerald0120/manageiq,tinaafitz/manageiq,jvlcek/manageiq,gmcculloug/manageiq,syncrou/manageiq,mkanoor/manageiq,kbrock/manageiq,skateman/manageiq,tinaafitz/manageiq,jameswnl/manageiq,romanblanco/manageiq,ailisp/manageiq,NickLaMuro/manageiq,jameswnl/manageiq,jameswnl/manageiq,skateman/manageiq,billfitzgerald0120/manageiq,ManageIQ/manageiq,djberg96/manageiq,mzazrivec/manageiq,durandom/manageiq,syncrou/manageiq,chessbyte/manageiq,d-m-u/manageiq,jrafanie/manageiq,hstastna/manageiq,mzazrivec/manageiq,josejulio/manageiq,branic/manageiq,lpichler/manageiq,hstastna/manageiq,aufi/manageiq,ManageIQ/manageiq,branic/manageiq,jntullo/manageiq,borod108/manageiq,mzazrivec/manageiq,juliancheal/manageiq,branic/manageiq,aufi/manageiq,kbrock/manageiq,ailisp/manageiq,yaacov/manageiq,gmcculloug/manageiq,lpichler/manageiq,romanblanco/manageiq,jvlcek/manageiq,hstastna/manageiq,andyvesel/manageiq,agrare/manageiq,gerikis/manageiq,ManageIQ/manageiq,durandom/manageiq,mzazrivec/manageiq,kbrock/manageiq,borod108/manageiq,jrafanie/manageiq,andyvesel/manageiq,NickLaMuro/manageiq,mresti/manageiq,pkomanek/manageiq,mresti/manageiq,juliancheal/manageiq,jameswnl/manageiq,aufi/manageiq,skateman/manageiq,mkanoor/manageiq,durandom/manageiq,pkomanek/manageiq,hstastna/manageiq,romanblanco/manageiq,djberg96/manageiq,tzumainn/manageiq,juliancheal/manageiq,billfitzgerald0120/manageiq,d-m-u/manageiq,durandom/manageiq,d-m-u/manageiq,mresti/manageiq,andyvesel/manageiq,josejulio/manageiq,israel-hdez/manageiq,borod108/manageiq,syncrou/manageiq,ailisp/manageiq,jvlcek/manageiq,juliancheal/manageiq,mkanoor/manageiq,jvlcek/manageiq,mresti/manageiq