Update simpleclient, simpleclient_common, ... to 0.7.0
Update simpleclient, simpleclient_common, ... to 0.7.0

ChristopherDavenport/http4s,rossabaker/http4s,ChristopherDavenport/http4s,ChristopherDavenport/http4s,http4s/http4s,rossabaker/http4s