Godeps: Add github.com/julienschmidt/httprouter

Signed-off-by: Lewis Marshall <lewis@lmars.net>
host, pkg, cluster: Ports host rpc functions to http

Signed-off-by: Corey Powell <mistdragon100@gmail.com>
host: Routes should use the hostMiddleware

Signed-off-by: Corey Powell <mistdragon100@gmail.com>
Merge branch 'host-rpc-to-http' of github.com:IceDragon200/flynn into host-rpc-to-http

Conflicts:
	host/http.go
	host/local_client.go
	host/sampi/http.go
	pkg/cluster/client.go
	pkg/cluster/host.go