Added version print by --version flag

Gopkg.lock

@@ -143,7 +143,7 @@
   branch = "master"
   name = "github.com/spf13/cobra"
   packages = ["."]
-  revision = "3c0b56b677e04926dfa835a1b3f11cd4f62f076e"
+  revision = "0c34d16c3123764e413b9ed982ada58b1c3d53ea"
 
 [[projects]]
   branch = "master"
@@ -203,6 +203,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "b85cbbca8b4283a0977ee92789c9beee468f2d355da5dfa28a4176934548f6f3"
+  inputs-digest = "85c318cc67a4e78dd3608297ae189cc70b07968ba6e0e1a04cc21b264fddf1eb"
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -12,6 +12,7 @@ ignored = ["elyby/minecraft-skinsystem"]
 
 [[constraint]]
   name = "github.com/spf13/cobra"
+  branch = "master"
 
 [[constraint]]
   name = "github.com/spf13/viper"

cmd/root.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"os"
 
+	"elyby/minecraft-skinsystem/bootstrap"
+
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -11,8 +13,9 @@ import (
 var cfgFile string
 
 var RootCmd = &cobra.Command{
-	Use:   "",
-	Short: "Nothing here",
+	Use:     "",
+	Short:   "Nothing here",
+	Version: bootstrap.GetVersion(),
 }
 
 // Execute adds all child commands to the root command and sets flags appropriately.
@@ -24,7 +27,7 @@ func Execute() {
 	}
 }
 
-func init() { 
+func init() {
 	cobra.OnInitialize(initConfig)
 	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.test.yaml)")
 }