Add server.image to server describe (#79)

Gopkg.toml

@@ -4,7 +4,7 @@
 
 [[constraint]]
   name = "github.com/hetznercloud/hcloud-go"
-  version = "1.0.0"
+  version = "1.1.0"
 
 [[constraint]]
   name = "github.com/pelletier/go-toml"

server_describe.go

@@ -66,6 +66,27 @@ func runServerDescribe(cli *CLI, cmd *cobra.Command, args []string) error {
 	} else {
 		fmt.Printf("    No Floating IPs\n")
 	}
+	fmt.Printf("Image:\n")
+	if server.Image != nil {
+		image := server.Image
+		fmt.Printf("  ID:\t\t%d\n", image.ID)
+		fmt.Printf("  Type:\t\t%s\n", image.Type)
+		fmt.Printf("  Status:\t%s\n", image.Status)
+		fmt.Printf("  Name:\t\t%s\n", na(image.Name))
+		fmt.Printf("  Description:\t%s\n", image.Description)
+		if image.ImageSize != 0 {
+			fmt.Printf("  Image size:\t%.1f GB\n", image.ImageSize)
+		} else {
+			fmt.Printf("  Image size:\t%s\n", na(""))
+		}
+		fmt.Printf("  Disk size:\t%.0f GB\n", image.DiskSize)
+		fmt.Printf("  Created:\t%s (%s)\n", image.Created, humanize.Time(image.Created))
+		fmt.Printf("  OS flavor:\t%s\n", image.OSFlavor)
+		fmt.Printf("  OS version:\t%s\n", na(image.OSVersion))
+		fmt.Printf("  Rapid deploy:\t%s\n", yesno(image.RapidDeploy))
+	} else {
+		fmt.Printf("  No Image\n")
+	}
 
 	fmt.Printf("Traffic:\n")
 	fmt.Printf("  Outgoing:\t%v\n", humanize.Bytes(server.OutgoingTraffic))