[Style] Replace some tabs with spaces for consistent indentation.

Author: Mr0grog

README.md

@@ -6,8 +6,8 @@ Node.js module for Google API service account authorization (Server to Server fl
 Installation
 ------------
 
-	npm install gapitoken
-	
+  npm install gapitoken
+
 Usage
 -----
 

gapitoken.js

@@ -4,14 +4,14 @@ var fs = require('fs');
 var p12ToPem = require('p12-to-pem');
 
 var GAPI = function(options, callback) {
-	this.token = null;
-	this.token_expires = null;
+    this.token = null;
+    this.token_expires = null;
 
-	this.iss = options.iss;
-	this.scope = options.scope;
-	this.sub = options.sub;
-	this.prn = options.prn;
-	
+    this.iss = options.iss;
+    this.scope = options.scope;
+    this.sub = options.sub;
+    this.prn = options.prn;
+    
     if (options.keyFile) {
         var self = this;
         process.nextTick(function() {
@@ -30,11 +30,11 @@ var GAPI = function(options, callback) {
 };
 
 GAPI.prototype.getToken = function(callback) {
-	if (this.token && this.token_expires && (new Date()).getTime() < this.token_expires * 1000) {
+    if (this.token && this.token_expires && (new Date()).getTime() < this.token_expires * 1000) {
         callback(null, this.token);
     } else {
         this.getAccessToken(callback);
-    }	
+    }
 };
 
 GAPI.prototype.getAccessToken = function(callback) {
@@ -48,11 +48,11 @@ GAPI.prototype.getAccessToken = function(callback) {
         iat: iat
     };
 
-	if(this.sub)
-		payload.sub = this.sub;
+    if(this.sub)
+        payload.sub = this.sub;
 
-	if(this.prn)
-		payload.prn = this.prn;
+    if(this.prn)
+        payload.prn = this.prn;
 
     var signedJWT = jws.sign({
         header: {alg: 'RS256', typ: 'JWT'},
@@ -101,7 +101,7 @@ GAPI.prototype.getAccessToken = function(callback) {
     });
 
     post_req.write(post_data);
-    post_req.end();	
+    post_req.end();
 };
 
 // Takes either a raw, unprotected key or a password-protected PKCS12 file