Update django-mozilla-product-details to django 1.11 friendly version
Update django-mozilla-product-details to django 1.11 friendly version

kyoshino/bedrock,MichaelKohler/bedrock,MichaelKohler/bedrock,flodolo/bedrock,sgarrity/bedrock,pascalchevrel/bedrock,sgarrity/bedrock,alexgibson/bedrock,ericawright/bedrock,alexgibson/bedrock,flodolo/bedrock,hoosteeno/bedrock,sylvestre/bedrock,ericawright/bedrock,flodolo/bedrock,mozilla/bedrock,alexgibson/bedrock,hoosteeno/bedrock,ericawright/bedrock,hoosteeno/bedrock,pascalchevrel/bedrock,hoosteeno/bedrock,craigcook/bedrock,pascalchevrel/bedrock,craigcook/bedrock,pascalchevrel/bedrock,flodolo/bedrock,mozilla/bedrock,sylvestre/bedrock,mozilla/bedrock,craigcook/bedrock,kyoshino/bedrock,mozilla/bedrock,kyoshino/bedrock,sgarrity/bedrock,kyoshino/bedrock,sgarrity/bedrock,MichaelKohler/bedrock,MichaelKohler/bedrock,craigcook/bedrock,ericawright/bedrock,sylvestre/bedrock,alexgibson/bedrock,sylvestre/bedrock