pculture/mirocommunity — pull request #43 by littleq0903 (2013-07-23 19:15:23+00:00)
Title: connection_router.for_write() only return a string but not a list

so use [0] will get only the first char.

```python
>>> using = connection_router.for_write()
'default'
>>> using = connection_router.for_write()[0]
'd'
```