add mysql-connector as a dependency link because the package on pypi

is broken

Author: mattbennett

setup.py

@@ -24,6 +24,9 @@
         "six>=1.10.0",
         "sqlalchemy-utils>=0.32.4",
     ],
+    dependency_links=[
+        'http://cdn.mysql.com/Downloads/Connector-Python/mysql-connector-python-2.1.4.zip'
+    ],
     extras_require={
         'dev': [
             "mock==2.0.0",

tox.ini

@@ -6,5 +6,5 @@ skipdist=True
 whitelist_externals = make
 
 commands =
-    pip install --editable .[dev]
+    pip install --editable .[dev] --process-dependency-links
     make test