Rename to GitHub (#3)

* circle

* Rename to github and fn->cli

*  Rename to github and fn->cli

cli/images.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"github.com/funcy/functions_go"
+	"github.com/urfave/cli"
+)
+
+type imagesCmd struct {
+	*functions.AppsApi
+}
+
+func images() cli.Command {
+	return cli.Command{
+		Name:  "images",
+		Usage: "manage function images",
+		Subcommands: []cli.Command{
+			build(),
+			deploy(),
+			bump(),
+			call(),
+			push(),
+			run(),
+			testfn(),
+		},
+	}
+}