Run end-to-end test with real data

Before switching from the legacy servers to the new web redirector, we want to make sure they actually return the same result.

To do this, we can:

• obtain logs from the old web redirectors
• parse the request hostname, path, HTTP status code (and returned location?)
• import legacy data into QA instance:
• execute the same requests against web-redirector-v2-qa.web.cern.ch and check if the results match