Add pillow, its required for ImageField

requirements.txt

@@ -7,3 +7,4 @@ lxml==3.3.6
 django-storages==1.5.2
 boto==2.46.1
 django-model-utils==2.3.1
+Pillow==3.4

setup.py

@@ -39,7 +39,7 @@ def load_requirements(*requirements_paths):
 
 setup(
     name='edxval',
-    version='0.0.18',
+    version='0.0.19',
     author='edX',
     url='http://github.com/edx/edx-val',
     description='edx-val',