go.crypto: add exp/terminal as code.google.com/p/go.crypto/ssh/terminal.

This removes the sole "exp/foo" import in the Go subrepos.
A separate CL will remove exp/terminal from the standard Go repository.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/5966045
3 files changed
tree: aeb672f410f6cc754a1dc8dffcc368213b55cacd
  1. terminal.go
  2. terminal_test.go
  3. util.go