Unicode filename support fixing #203

[ivorbosloper]

Non-ascii files raise errors, see #203 . On Mac it's more complex because the unicode filenames we read with os.walk() contain different codepoints for the same unicode characters we wrote (https://stackoverflow.com/a/33647372/193886 pointed me in the right direction, unicodedata.normalize() is your friend).

[coveralls]

Coverage decreased (-0.08%) to 92.189% when pulling 9528b2b on ivorbosloper:unicode_support into 37aecf5 on jorgebastida:master.

[ivorbosloper]

Eh, tests fail because python 2.6 is tested and the project dependencies fail to install. Can we please switch off travis-ci testing in python 2.6?

[coveralls]

Coverage decreased (-0.08%) to 92.189% when pulling 0dac9e7 on ivorbosloper:unicode_support into 37aecf5 on jorgebastida:master.

[ivorbosloper]

Hmmm, root-cause was Pillow > 4.0.0 dropped python 2.6 support. So either drop python 2.6 in this library or set dependency pillow < 4.0.0 .

See https://pillow.readthedocs.io/en/4.3.x/installation.html#notes