Update readme

Author: gdarko

README.md

@@ -33,6 +33,7 @@ public function run($resource, $args = array())
   * ```'max_height'``` - Numeric px value
   * ```'cmyktorgb'``` - 1 OR 0
   * ```'compression'``` - intelligent (default), ultra OR lossless
+  * ```'webp'``` - 1 OR 0 (generate or don't generate webp)
 
 
 The ```$args``` parameter is not required and the defaults are as follows: 
@@ -43,7 +44,8 @@ The ```$args``` parameter is not required and the defaults are as follows:
 	'max_width' => 0,
 	'max_height' => 0,
 	'cmyktorgb' => 1, 
-	'compression' => 'intelligent', 
+	'compression' => 'intelligent',
+        'webp'        => 1, 
 ] 
 ```  
 
@@ -117,6 +119,7 @@ We have the following properties and methods available to use for each optimized
 - ```$file->getSavedBytes()``` - Returns the total saved bytes.
 - ```$file->getSavedPercent()``` - Returns the total saved space in percentage.
 - ```$file->getUrl()``` - Returns the optimized image url. You need to download and store it on your server because it will be removed after 1 hour from MegaOptim server
+- ```$file->getWebP()``` - Returns NULL if there is no webp version available or ResultWebP instance for the webp version of this file.
 
 To save the optimized images locally we have three methods available:
 - ```$file->saveOverwrite()``` - Overwrites the local file with the new optimized file. **Only available when local files are being optimized, not URLs.**

loadnoncomposer.php

@@ -25,6 +25,7 @@
 require_once('src/Http/HTTP.php');
 require_once('src/Http/BaseClient.php');
 require_once('src/Http/Client.php');
+require_once('src/Responses/ResultWebP.php');
 require_once('src/Responses/Result.php');
 require_once('src/Responses/Response.php');
 require_once('src/Responses/Profile.php');

src/Optimizer.php

@@ -152,7 +152,7 @@ public function run( $resource, $args = array(), $local_wait = false ) {
 					$tmp_response = $this->service->get_result( $response->getProcessId(), 1 );
 					if ( $tmp_response->isSuccessful() && ! $tmp_response->isProcessing() ) {
 						$tmp_response->setLocalResources( $resource );
-						$tmp_response->setProcessId( $processID );
+						$tmp_response->setProcessId( $pid );
 
 						return $tmp_response;
 					}

src/Responses/Result.php

@@ -56,6 +56,12 @@ class Result implements IFile {
 	 */
 	private $url = '';
 
+	/**
+	 * WebP Result
+	 * @var ResultWebP
+	 */
+	private $webp;
+
 	/**
 	 * The local file
 	 * If this is not null it means a file by path was optimized and this is it's local path.
@@ -91,6 +97,9 @@ public function __construct( $result ) {
 		if ( isset( $result->url ) ) {
 			$this->url = $result->url;
 		}
+		if ( isset( $result->webp ) ) {
+			$this->webp = new ResultWebP($result);
+		}
 	}