convert net crate to use hyper
convert msg crate to use hyper
convert script crate to use hyper
adjust WPT since hyper fixed some
Set up openssl on Android
Temporarily change expectations for some wpt tests till hyper gets support for status codes >599
auto merge of #4198 : Manishearth/servo/hyper-droid, r=Manishearth

This is the Hyper pull request, plus the set up for OpenSSL on Android to make it merge.

Sean's commits have been reviewed in #4065 (My Android changes were reviewed by Glenn)