Update dependencies

setup.py

@@ -5,7 +5,7 @@ setup(name='political-memory',
     description='OpenShift App',
     packages=['political_memory'],
     package_dir={'political_memory': '.'},
-    author='James Pic, Laurent Peuch, Arnaud Fabre',
+    author='James Pic, Laurent Peuch, Arnaud Fabre, Nicolas Joyard',
     author_email='cortex@worlddomination.be',
     url='http://github.com/political-memory/political_memory/',
     install_requires=[
@@ -15,8 +15,8 @@ setup(name='political-memory',
         'django-compressor>=1.6,<1.7',
         'django-datetime-widget>=0.9,<1.0',
         'django-filter>=0.11,<0.12',
-        'django-representatives-votes==0.0.13',
-        'django-representatives==0.0.14',
+        'django-representatives-votes==0.0.15',
+        'django-representatives==0.0.18',
         'django-taggit>=0.17,<0.18',
         'django>=1.8,<1.9',
         'djangorestframework>=3.2.0,<3.3.0',