fix: sync up with nightly futures_api#176

Merged

yoshuawuyts merged 13 commits intohttp-rs:masterfrom prasannavl:futures_update_2017_04

Apr 18, 2019

+38-15

Commits on Apr 16, 2019

Commits on Apr 17, 2019

update dep versions
prasannavl
authored
Update .travis.yml
prasannavl
authored
Documents acceptable endpoint fns (http-rs#177 )

fairingrey
authored and
yoshuawuyts
committed