Moved from "godep" to "dep" and added package lock files.

Gopkg.toml

@@ -0,0 +1,42 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/codegangsta/cli"
+  version = "1.19.1"
+
+[[constraint]]
+  name = "github.com/yudai/gotty"
+  version = "2.0.0-alpha.3"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/yudai/hcl"
+
+[prune]
+  go-tests = true
+  unused-packages = true

Makefile

@@ -4,7 +4,9 @@ VERSION = 2.0.0-alpha.3
 BUILD_OPTIONS = -ldflags "-X main.Version=$(VERSION) -X main.CommitID=$(GIT_COMMIT)"
 
 gotty: main.go server/*.go webtty/*.go backend/*.go Makefile
-	godep go build ${BUILD_OPTIONS}
+	dep init
+	dep ensure
+	go build ${BUILD_OPTIONS}
 
 .PHONY: asset
 asset: bindata/static/js/gotty-bundle.js bindata/static/index.html bindata/static/favicon.png bindata/static/css/index.css bindata/static/css/xterm.css bindata/static/css/xterm_customize.css