Fix UnicodeDecodeError on Windows on installation

[aq1]

I got this error

C:\nece
λ python setup.py install
Traceback (most recent call last):
  File "setup.py", line 6, in <module>
    ld = f.read()
  File "C:\Python\Python35\lib\encodings\cp1252.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 675: character maps to <undefined>

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[coveralls]

Coverage remained the same at 98.795% when pulling 3e45590 on aq1:patch-2 into 44a6f7a on tatterdemalion:master.

[aq1]

so?