Updated vendor and switched to urfave/cli

vendor/golang.org/x/crypto/AUTHORS

@@ -1,3 +0,0 @@
-# This source code refers to The Go Authors for copyright purposes.
-# The master list of authors is in the main Go distribution,
-# visible at http://tip.golang.org/AUTHORS.

vendor/golang.org/x/crypto/CONTRIBUTING.md

@@ -1,31 +0,0 @@
-# Contributing to Go
-
-Go is an open source project.
-
-It is the work of hundreds of contributors. We appreciate your help!
-
-
-## Filing issues
-
-When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
-
-1. What version of Go are you using (`go version`)?
-2. What operating system and processor architecture are you using?
-3. What did you do?
-4. What did you expect to see?
-5. What did you see instead?
-
-General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
-The gophers there will answer or ask you to file an issue if you've tripped over a bug.
-
-## Contributing code
-
-Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
-before sending patches.
-
-**We do not accept GitHub pull requests**
-(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
-
-Unless otherwise noted, the Go source files are distributed under
-the BSD-style license found in the LICENSE file.
-

vendor/golang.org/x/crypto/CONTRIBUTORS

@@ -1,3 +0,0 @@
-# This source code was written by the Go contributors.
-# The master list of contributors is in the main Go distribution,
-# visible at http://tip.golang.org/CONTRIBUTORS.

vendor/golang.org/x/crypto/README

@@ -1,3 +0,0 @@
-This repository holds supplementary Go cryptography libraries.
-
-To submit changes to this repository, see http://golang.org/doc/contribute.html.

vendor/golang.org/x/crypto/codereview.cfg

@@ -1 +0,0 @@
-issuerepo: golang/go

vendor/golang.org/x/crypto/ssh/channel.go

@@ -67,6 +67,8 @@ type Channel interface {
 	// boolean, otherwise the return value will be false. Channel
 	// requests are out-of-band messages so they may be sent even
 	// if the data stream is closed or blocked by flow control.
+	// If the channel is closed before a reply is returned, io.EOF
+	// is returned.
 	SendRequest(name string, wantReply bool, payload []byte) (bool, error)
 
 	// Stderr returns an io.ReadWriter that writes to this channel

vendor/golang.org/x/crypto/ssh/common.go

@@ -44,7 +44,7 @@ var supportedKexAlgos = []string{
 // of authenticating servers) in preference order.
 var supportedHostKeyAlgos = []string{
 	CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
-	CertAlgoECDSA384v01, CertAlgoECDSA521v01,
+	CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01,
 
 	KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521,
 	KeyAlgoRSA, KeyAlgoDSA,