TypeError when importing pandas in Google Cloud VM
This is using a fresh install of Anaconda in an Ubuntu 15.10 based Google Cloud VM.  At first glance it seemed to relate to difficulties getting console encoding (see `from pandas.core.format import detect_console_encoding` below)?

``` python
import pandas

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-1-f0ee645c240d> in <module>()
----> 1 import pandas as pd
      2 import dask.dataframe as dd
      3 from dask.diagostics import ProgressBar as pb

/home/michael/anaconda3/lib/python3.5/site-packages/pandas/__init__.py in <module>()
     40
     41 # let init-time option registration happen
---> 42 import pandas.core.config_init
     43
     44 from pandas.core.api import *

/home/michael/anaconda3/lib/python3.5/site-packages/pandas/core/config_init.py in <module>()
     15                                 is_instance_factory, is_one_of_factory,
     16                                 get_default_val)
---> 17 from pandas.core.format import detect_console_encoding
     18
     19

/home/michael/anaconda3/lib/python3.5/site-packages/pandas/core/format.py in <module>()
      8 from pandas.core.base import PandasObject
      9 from pandas.core.common import adjoin, notnull
---> 10 from pandas.core.index import Index, MultiIndex, _ensure_index
     11 from pandas import compat
     12 from pandas.compat import(StringIO, lzip, range, map, zip, reduce, u,

/home/michael/anaconda3/lib/python3.5/site-packages/pandas/core/index.py in <module>()
     29 from pandas.core.strings import StringAccessorMixin
     30 from pandas.core.config import get_option
---> 31 from pandas.io.common import PerformanceWarning
     32
     33

/home/michael/anaconda3/lib/python3.5/site-packages/pandas/io/common.py in <module>()
     66
     67 try:
---> 68     from boto.s3 import key
     69     class BotoFileLikeReader(key.Key):
     70         """boto Key modified to be more file-like

/home/michael/anaconda3/lib/python3.5/site-packages/boto/__init__.py in <module>()
  1214     return storage_uri(uri_str)
  1215
-> 1216 boto.plugin.load_plugins(config)

/home/michael/anaconda3/lib/python3.5/site-packages/boto/plugin.py in load_plugins(config)
    90         return
    91     directory = config.get('Plugin', 'plugin_directory')
---> 92     for file in glob.glob(os.path.join(directory, '*.py')):
    93         _import_module(file)

/home/michael/anaconda3/lib/python3.5/posixpath.py in join(a, *p)
    87                 path += sep + b
    88     except (TypeError, AttributeError, BytesWarning):
---> 89         genericpath._check_arg_types('join', a, *p)
    90         raise
    91     return path

/home/michael/anaconda3/lib/python3.5/genericpath.py in _check_arg_types(funcname, *args)
   141         else:
   142             raise TypeError('%s() argument must be str or bytes, not %r' %
--> 143                             (funcname, s.__class__.__name__)) from None
   144     if hasstr and hasbytes:
   145         raise TypeError("Can't mix strings and bytes in path components") from None

TypeError: join() argument must be str or bytes, not 'NoneType'
```
