[yt-dev] Issue #900: yt modifies logger, which clashes with astropy's logging system (yt_analysis/yt)

[Adam Ginsburg]

New issue 900: yt modifies logger, which clashes with astropy's logging system
https://bitbucket.org/yt_analysis/yt/issue/900/yt-modifies-logger-which-clashes-with

Adam Ginsburg:

I'd like to be able to disable yt's modifications to logger.  An example:

```
In [1]: from astropy import log

In [2]: log.info('blah')
INFO: blah [unknown]

In [3]: import yt

In [4]: log.info('blah')
INFO: blah [unknown]
astropy: [INFO     ] 2014-09-15 20:22:46,643 blah
```

After importing yt, the logger message is duplicated.

(I'm not changing any of the defaults for the issue below, but this is pretty annoying at present)