feat: change to ipfs-http-client

[hugomrdias]

tests still not passing

ipfsd.api for Daemons
    go
      1) test the ipfsd.api
(node:2935) UnhandledPromiseRejectionWarning: AssertionError: expected [Error: Command failed: /Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/go-ipfs-dep/go-ipfs/ipfs daemon
Error: serveHTTPApi: manet.Listen(/ip4/127.0.0.1/tcp/5101) failed: listen tcp4 127.0.0.1:5101: bind: address already in use

Initializing daemon...
go-ipfs version: 0.4.18-
Repo version: 7
System version: amd64/darwin
Golang version: go1.11.1
Swarm listening on /ip4/127.0.0.1/tcp/50306
Swarm listening on /p2p-circuit
Swarm announcing /ip4/127.0.0.1/tcp/50306
Received interrupt signal, shutting down...
(Hit ctrl-c again to force-shutdown the daemon.)
] to not exist
    at df.spawn (/Users/hugomrdias/code/pl/js-ipfsd-ctl/test/api.spec.js:99:28)
    at series (/Users/hugomrdias/code/pl/js-ipfsd-ctl/src/factory-daemon.js:136:25)
    at /Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/async/internal/parallel.js:39:9
    at /Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/async/internal/once.js:12:16
    at iterateeCallback (/Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/async/internal/eachOfLimit.js:45:17)
    at /Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/async/internal/onlyOnce.js:12:16
    at /Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/async/internal/parallel.js:36:13
    at f (/Users/hugomrdias/code/pl/js-ipfsd-ctl/node_modules/once/once.js:25:25)
    at command.then.catch.err (/Users/hugomrdias/code/pl/js-ipfsd-ctl/src/utils/exec.js:30:7)
    at process._tickCallback (internal/process/next_tick.js:68:7)

[alanshaw]

LGTM