View returned when using squeeze=True with read_csv?
``` python
In [1]: import pandas as pd, StringIO

In [2]: csv = StringIO.StringIO('time,data\n0,10\n1,11\n2,12\n4,14\n5,15\n3,13')

In [3]: df = pd.read_csv(csv, index_col='time')

In [4]: df
Out[4]: 
      data
time      
0       10
1       11
2       12
4       14
5       15
3       13

In [5]: df.sort(inplace=True)

In [6]: df
Out[6]: 
      data
time      
0       10
1       11
2       12
3       13
4       14
5       15
```

Specifying `squeeze=True` returns a view instead of first-class object? Is this by design and if so, why?

As of 0.14.1, `inplace=True` is the default (related #5190) for series sorts so the following error will occur by default if `squeeze=True` was specified.

``` python
In [1]: import pandas as pd, StringIO

In [2]: csv = StringIO.StringIO('time,data\n0,10\n1,11\n2,12\n4,14\n5,15\n3,13')

In [3]: df = pd.read_csv(csv, index_col='time', squeeze=True)

In [4]: df
Out[4]: 
      data
time      
0       10
1       11
2       12
4       14
5       15
3       13

In [5]: df.sort(inplace=True)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-5-850f333de498> in <module>()
----> 1 df.sort(inplace=True)

C:\WinPython-64bit-2.7.5.3\python-2.7.5.amd64\lib\site-packages\pandas\core\series.pyc in sort(self, axis, ascending, kind, na_position, inplace)
   1651                           kind=kind,
   1652                           na_position=na_position,
-> 1653                           inplace=inplace)
   1654 
   1655     def order(self, na_last=None, ascending=True, kind='quicksort', na_position='last', inplace=False):

C:\WinPython-64bit-2.7.5.3\python-2.7.5.amd64\lib\site-packages\pandas\core\series.pyc in order(self, na_last, ascending, kind, na_position, inplace)
   1684         # GH 5856/5853
   1685         if inplace and self._is_cached:
-> 1686             raise ValueError("This Series is a view of some other array, to "
   1687                              "sort in-place you must create a copy")
   1688 

ValueError: This Series is a view of some other array, to sort in-place you must create a copy
```
