Merge pull request #7 from Hoosk/master

Added MozJpeg Tool.

src/PHPImageOptim/Tools/Jpeg/MozJpeg.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Classes;
+
+use Exception;
+use PHPImageOptim\Tools\Common;
+use PHPImageOptim\Tools\ToolsInterface;
+
+class MozJpeg extends Common implements ToolsInterface
+{
+    public function optimise()
+    {
+        exec($this->binaryPath . ' -quality 90 ' . escapeshellarg($this->imagePath), $aOutput, $iResult);
+
+        if ($iResult !== 0) {
+            throw new Exception('MozJpeg was unable to optimise image.');
+        }
+        return $this;
+    }
+    public function checkVersion()
+    {
+        exec($this->binaryPath . ' --version', $aOutput, $iResult);
+    }
+}