rpc rewrite: control RPCs using gRPC + separate RPC for data transfer

transport/ssh: update go-netssh to new version
    => supports CloseWrite and Deadlines
    => build: require Go 1.11 (netssh requires it)

Gopkg.lock

@@ -80,6 +80,10 @@
     "protoc-gen-go/generator/internal/remap",
     "protoc-gen-go/grpc",
     "protoc-gen-go/plugin",
+    "ptypes",
+    "ptypes/any",
+    "ptypes/duration",
+    "ptypes/timestamp",
   ]
   pruneopts = ""
   revision = "aa810b61a9c79d51363740d207bb46cf8e620ed5"
@@ -183,30 +187,11 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:25559b520313b941b1395cd5d5ee66086b27dc15a1391c0f2aad29d5c2321f4b"
+  digest = "1:fa72f780ae3b4820ed12cef7a034291ab10d83e2da4ab5ba81afa44d5bf3a529"
   name = "github.com/problame/go-netssh"
   packages = ["."]
   pruneopts = ""
-  revision = "c56ad38d2c91397ad3c8dd9443d7448e328a9e9e"
-
-[[projects]]
-  branch = "master"
-  digest = "1:8c63c44f018bd52b03ebad65c9df26aabbc6793138e421df1c8c84c285a45bc6"
-  name = "github.com/problame/go-rwccmd"
-  packages = ["."]
-  pruneopts = ""
-  revision = "391d2c78c8404a9683d79f75dd24ab53040f89f7"
-
-[[projects]]
-  digest = "1:1bcbb0a7ad8d3392d446eb583ae5415ff987838a8f7331a36877789be20667e6"
-  name = "github.com/problame/go-streamrpc"
-  packages = [
-    ".",
-    "internal/pdu",
-  ]
-  pruneopts = ""
-  revision = "d5d111e014342fe1c37f0b71cc37ec5f2afdfd13"
-  version = "v0.5"
+  revision = "09d6bc45d284784cb3e5aaa1998513f37eb19cc6"
 
 [[projects]]
   branch = "master"
@@ -279,6 +264,14 @@
   revision = "69483b4bd14f5845b5a1e55bca19e954e827f1d0"
   version = "v1.1.4"
 
+[[projects]]
+  digest = "1:f80053a92d9ac874ad97d665d3005c1118ed66e9e88401361dc32defe6bef21c"
+  name = "github.com/theckman/goconstraint"
+  packages = ["go1.11/gte"]
+  pruneopts = ""
+  revision = "93babf24513d0e8277635da8169fcc5a46ae3f6a"
+  version = "v1.11.0"
+
 [[projects]]
   branch = "v2"
   digest = "1:6b8a6afafde7ed31cd0c577ba40d88ce39e8f1c5eb76d7836be7d5b74f1c534a"
@@ -289,21 +282,48 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:9c286cf11d0ca56368185bada5dd6d97b6be4648fc26c354fcba8df7293718f7"
+  digest = "1:ea539c13b066dac72a940b62f37600a20ab8e88057397c78f3197c1a48475425"
+  name = "golang.org/x/net"
+  packages = [
+    "context",
+    "http/httpguts",
+    "http2",
+    "http2/hpack",
+    "idna",
+    "internal/timeseries",
+    "trace",
+  ]
+  pruneopts = ""
+  revision = "351d144fa1fc0bd934e2408202be0c29f25e35a0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:f358024b019f87eecaadcb098113a40852c94fe58ea670ef3c3e2d2c7bd93db1"
   name = "golang.org/x/sys"
   packages = ["unix"]
   pruneopts = ""
-  revision = "bf42f188b9bc6f2cf5b8ee5a912ef1aedd0eba4c"
+  revision = "4ed8d59d0b35e1e29334a206d1b3f38b1e5dfb31"
 
 [[projects]]
   digest = "1:5acd3512b047305d49e8763eef7ba423901e85d5dd2fd1e71778a0ea8de10bd4"
   name = "golang.org/x/text"
   packages = [
+    "collate",
+    "collate/build",
     "encoding",
     "encoding/internal/identifier",
+    "internal/colltab",
     "internal/gen",
+    "internal/tag",
+    "internal/triegen",
+    "internal/ucd",
+    "language",
+    "secure/bidirule",
     "transform",
+    "unicode/bidi",
     "unicode/cldr",
+    "unicode/norm",
+    "unicode/rangetable",
   ]
   pruneopts = ""
   revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
@@ -317,6 +337,54 @@
   pruneopts = ""
   revision = "d0ca3933b724e6be513276cc2edb34e10d667438"
 
+[[projects]]
+  branch = "master"
+  digest = "1:5fc6c317675b746d0c641b29aa0aab5fcb403c0d07afdbf0de86b0d447a0502a"
+  name = "google.golang.org/genproto"
+  packages = ["googleapis/rpc/status"]
+  pruneopts = ""
+  revision = "bd91e49a0898e27abb88c339b432fa53d7497ac0"
+
+[[projects]]
+  digest = "1:d141efe4aaad714e3059c340901aab3147b6253e58c85dafbcca3dd8b0e88ad6"
+  name = "google.golang.org/grpc"
+  packages = [
+    ".",
+    "balancer",
+    "balancer/base",
+    "balancer/roundrobin",
+    "binarylog/grpc_binarylog_v1",
+    "codes",
+    "connectivity",
+    "credentials",
+    "credentials/internal",
+    "encoding",
+    "encoding/proto",
+    "grpclog",
+    "internal",
+    "internal/backoff",
+    "internal/binarylog",
+    "internal/channelz",
+    "internal/envconfig",
+    "internal/grpcrand",
+    "internal/grpcsync",
+    "internal/syscall",
+    "internal/transport",
+    "keepalive",
+    "metadata",
+    "naming",
+    "peer",
+    "resolver",
+    "resolver/dns",
+    "resolver/passthrough",
+    "stats",
+    "status",
+    "tap",
+  ]
+  pruneopts = ""
+  revision = "df014850f6dee74ba2fc94874043a9f3f75fbfd8"
+  version = "v1.17.0"
+
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
@@ -332,8 +400,6 @@
     "github.com/mattn/go-isatty",
     "github.com/pkg/errors",
     "github.com/problame/go-netssh",
-    "github.com/problame/go-rwccmd",
-    "github.com/problame/go-streamrpc",
     "github.com/prometheus/client_golang/prometheus",
     "github.com/prometheus/client_golang/prometheus/promhttp",
     "github.com/spf13/cobra",
@@ -341,8 +407,13 @@
     "github.com/stretchr/testify/assert",
     "github.com/stretchr/testify/require",
     "github.com/zrepl/yaml-config",
+    "golang.org/x/net/context",
     "golang.org/x/sys/unix",
     "golang.org/x/tools/cmd/stringer",
+    "google.golang.org/grpc",
+    "google.golang.org/grpc/credentials",
+    "google.golang.org/grpc/keepalive",
+    "google.golang.org/grpc/peer",
   ]
   solver-name = "gps-cdcl"
   solver-version = 1