Merge branch 'master' of github.com:upwork/python-upwork

Author: mnovozhylov

requirements.py

@@ -2,5 +2,5 @@
 mock
 ipython
 oauth2==1.9.0.post1
-urllib3==1.22
+urllib3==1.25
 httplib2==0.10.3

setup.py

@@ -76,7 +76,7 @@ def run(self):
       author_email='python@upwork.com',
       maintainer='Maksym Novozhylov',
       maintainer_email='mnovozhilov@upwork.com',
-      install_requires=['oauth2==1.9.0.post1', 'urllib3==1.24.1'],
+      install_requires=['oauth2==1.9.0.post1', 'urllib3==1.25.3'],
       packages=find_packages(),
       license='BSD',
       download_url='http://github.com/upwork/python-upwork',