control-center/serviced — pull request #880 by wplu (2014-08-19 20:03:28+00:00)
Title: use string instead of ServiceState as key to map for GetServiceStatus

serviced service status hangs due to using jsonrpc instead of gob rpc:
https://github.com/control-center/serviced/pull/874

DEMO:
```
NAME	ID	STATUS	UPTIME	HOST	DOCKER_ID	IN_SYNC
└─Zenoss.core	6fl86pf84ukireyru6gm57pyp
├─localhost	3401mclpibaqcx0b4fmw4vvm3
│ ├─zenhub	3swabnlvtrwb39jpulnbml26x	Running	1m36.036149743s	plu-9	23c619fa1393	Y
│ └─localhost	7xes29erwx1z3ff6ps8k2jlsd
│ ├─zenprocess	2ordfibkl6oidaaelaf8je4jw	Running	1m48.983957785s	plu-9	9dc8cd205fa0	Y
│ ├─zencommand	421hzj8v5gvbatf89qpienva2	Running	1m50.173032798s	plu-9	43a2fc1678dc	Y
│ ├─zenperfsnmp	4e4abgv8j4ezwq31yb19fn6mn	Running	1m45.782365934s	plu-9	d825725aa510	Y
│ ├─collectorredis	5t2jltbqdhfrhlny513zkvqkg	Running	1m58.027526809s	plu-9	71fa4b795947	Y
│ ├─zensyslog	6jnkouz02jegsj0arx9jstyio	Running	1m40.439498288s	plu-9	2e3b02c006d7	Y
│ ├─zenpython	6mkpx977fbx0vzkl80hqpzzlh	Running	1m43.12413615s	plu-9	8b8aad2dc1a0	Y
│ ├─zenstatus	7tw1rascahwq8ab8yh66cywdh	Running	1m40.564491811s	plu-9	ff551b87b65a	Y
│ ├─zenmodeler	8ivoy5adtdv6l83p9y2orgttv	Running	1m52.889910618s	plu-9	f8d8c92129be	Y
│ ├─zenjmx	9ozmbvy6e2ib88wqo8x2pr7kk	Running	1m44.43481383s	plu-9	aa55a0748083	Y
│ ├─zenping	aenzrnk7w8lztx4z5vzogi4us	Running	1m51.424666297s	plu-9	79462f0bca24	Y
│ ├─zentrap	ckoulhx4174ne8e0j1ylesdcz	Running	1m40.222652698s	plu-9	fe94367a04f2	Y
│ └─MetricShipper	dyp1xln58mwsj3nbwtoszbu90	Running	1m47.849290353s	plu-9	2760429b4a17	Y
├─zproxy	3f5nmh86wgm45ge4ne64chkmg	Running	1m54.29069186s	plu-9	82343e9c376e	Y
├─zeneventd	3ph09i1ze70ioewj5zkwx6xgp	Running	2m0.389722506s	plu-9	5b93b80f2a27	Y
├─RabbitMQ	5ary0togxkvmkbpjpiycihak8	Running	1m24.138047366s	plu-9	be6b43671582	Y
├─MetricConsumer	8omhb3ka0k0kb9jeb5tgjqycu	Running	2m1.640401487s	plu-9	616364ad0abf	Y
├─Zope	a9znlytsdublewvkwmdoanp2p	Running	1m59.266388561s	plu-9	c56f634ff5d7	Y
├─opentsdb	as3dtcszqa1cql1ej3mdby4oa	Running	1m27.821253705s	plu-9	86c98f684208	Y
├─CentralQuery	axiec6j8abx0v5aecs78rw1sq	Running	1m31.616274569s	plu-9	7db36b715a95	Y
├─HBase	butyurrjp4nz3caka1m7rfmq1
│ ├─RegionServer	1649hmhd3tyv30s5k9h9o1qb1	Running	1m52.780428144s	plu-9	a34ed263b025	Y
│ ├─ZooKeeper	3i4j78wwck0z9402s7am3ry4g	Running	1m33.065346997s	plu-9	cf89f0453231	Y
│ └─HMaster	7coaj828b01fxuf0ysxzkz4wp	Running	1m47.166221933s	plu-9	e7341ca6b80a	Y
├─zenjobs	c2upqbae3w3taukgs1mv0lbgb	Running	1m57.946530625s	plu-9	367f9ca3c158	Y
├─zenactiond	d3jkx2swjxb8fytlz0dc01kb0	Running	1m34.318235235s	plu-9	9ec96e901b91	Y
├─zeneventserver	darar3sv7a269zjtbnhzvy5ih	Running	1m39.17016278s	plu-9	f6eec2692218	Y
├─MySQL	e06gpd5nocj4747i8mwypa1u	Running	1m40.981269338s	plu-9	97106e7bfdfb	Y
└─redis	evqfi11f1sx1a449a5b0vleel	Running	1m56.338663467s	plu-9	9a33c9c69a63	Y

```