Add dedicated writer for string result

lib/dashboard/repl.js

@@ -1,4 +1,5 @@
 const repl = require("repl");
+const util = require("util");
 
 const Console = require('./console.js');
 
@@ -20,11 +21,20 @@ class REPL {
     });
   }
 
+  enhancedWriter(output) {
+    if ((typeof output) === "string") {
+      return output;
+    } else {
+      return util.inspect(output, {colors: true});
+    }
+  }
+
   start(done) {
     this.replServer = repl.start({
       prompt: "Embark (" + this.env + ") > ",
       useGlobal: true,
-      eval: this.enhancedEval.bind(this)
+      eval: this.enhancedEval.bind(this),
+      writer: this.enhancedWriter.bind(this)
     });
 
     this.replServer.on("exit", () => {