Remove ftfy dependency and update docs

requirements.txt

@@ -10,7 +10,6 @@ ujson>=1.35
 dill>=0.2,<0.3
 requests>=2.13.0,<3.0.0
 regex==2017.4.5
-ftfy>=4.4.2,<5.0.0
 pytest>=3.0.6,<4.0.0
 mock>=2.0.0,<3.0.0
 msgpack-python==0.5.4

setup.py

@@ -196,7 +196,6 @@ def setup_package():
                 'dill>=0.2,<0.3',
                 'requests>=2.13.0,<3.0.0',
                 'regex==2017.4.5',
-                'ftfy>=4.4.2,<5.0.0',
                 'msgpack-python==0.5.4',
                 'msgpack-numpy==0.4.1'],
             classifiers=[

spacy/compat.py

@@ -1,7 +1,6 @@
 # coding: utf8
 from __future__ import unicode_literals
 
-import ftfy
 import sys
 import ujson
 import itertools
@@ -38,7 +37,6 @@ pickle = pickle
 copy_reg = copy_reg
 CudaStream = CudaStream
 cupy = cupy
-fix_text = ftfy.fix_text
 copy_array = copy_array
 izip = getattr(itertools, 'izip', zip)
 

website/api/_top-level/_compat.jade

@@ -6,8 +6,7 @@ p
     |  but somewhat ugly in Python. Logic that deals with Python or platform
     |  compatibility only lives in #[code spacy.compat]. To distinguish them from
     |  the builtin functions, replacement functions are suffixed with an
-    |  undersocre, e.e #[code unicode_]. For specific checks, spaCy uses the
-    |  #[code six] and #[code ftfy] packages.
+    |  undersocre, e.e #[code unicode_].
 
 +aside-code("Example").
     from spacy.compat import unicode_, json_dumps