Added client and version

Author: kanhaiya

lib/api_client.js

@@ -1,6 +1,7 @@
 var request = require("request"),
   logger,
-  Config = require("./config");
+  Config = require("./config"),
+  packageVersion = require("../../package.json").version;
 
 /**
  * Operates on an instance of ApiClient and returns latest version and list of supported versions.
@@ -56,7 +57,7 @@ var fetchApiVersions_ = function(settings, retries, fnCallback) {
  * @param {!AutomationApiClient} settings An object that for lambda user credentials
  */
 var ApiClient = function(settings) {
-  settings = settings || { };
+  settings = settings || {};
   /**
    * Required check for username.
    * @return {Error|null}
@@ -71,7 +72,7 @@ var ApiClient = function(settings) {
   if (!settings.accessKey) {
     throw new Error("Access Key is required.");
   }
-  if(!logger) {
+  if (!logger) {
     logger = require("./logger")(settings.logFile);
   }
   logger.info("Imported ApiClient and User Credenetials", settings);
@@ -112,7 +113,9 @@ ApiClient.request = function(options, fnCallback) {
       options.headers = {
         Authorization: ApiClient.authHeader,
         "Content-Type": "application/json",
-        Accept: "application/json"
+        Accept: "application/json",
+        client: "npm-rest-client",
+        version: packageVersion
       };
       options.url = ApiClient.baseUrl + options.url;
     }