WIP test for uploading customer satisfaction
Add bucket for customer satisfaction
Parse customer satisfaction excel file
Parsing dates as american format.

This is a known data issue.
Increase upload size, due to excel files
Do not de-americanize dates.

It was a date conversion issue in libreoffice. This should have not a
problem with the real file.
Update feature test with new file size limit
Merge pull request #138 from alphagov/evl-customer-satisfaction-upload

Evl customer satisfaction upload