add middleware to detect forwarded client ip; work on #104
remove middleware, overengineered as we only (currently) need this logic in this particular view
remove uneccessary call to keys()
Updated logic as the known architecture will more often than not supply the forwarded header, saves a nominal amount of compute time
remove deprecated middleware
Merge pull request #106 from mozilla/x-forwarded-for-middleware

add middleware to detect forwarded client ip; work on #104