Use a Rack::Request to detect SSL instead of just using the rack http scheme environment variable
Merge branch 'hide-length-when-proxied' of https://github.com/eatstoomuchjam/breach-mitigation-rails into eatstoomuchjam-hide-length-when-proxied

Conflicts:
	lib/breach_mitigation/length_hiding.rb
Merge branch 'eatstoomuchjam-hide-length-when-proxied'
0.2.2 - Correctly detect proxied SSL