Merge pull request php-curl-class#177 from zachborboa/master

Fix a memory leak

Author: zachborboa

src/Curl/Curl.php

@@ -133,6 +133,7 @@ public function close()
         if (is_resource($this->curl)) {
             curl_close($this->curl);
         }
+        $this->json_decoder = null;
     }
 
     public function complete($callback)

tests/PHPCurlClass/PHPCurlClassTest.php

@@ -669,7 +669,8 @@ public function testMultipleCookieResponse()
         $this->assertEquals('cookie1=scrumptious,cookie2=mouthwatering', $test->curl->response_headers['Set-Cookie']);
     }
 
-    public function testDefaultTimeout() {
+    public function testDefaultTimeout()
+    {
         $test = new Test();
         $test->server('timeout', 'GET', array(
             'seconds' => '31',
@@ -681,7 +682,8 @@ public function testDefaultTimeout() {
         $this->assertFalse($test->curl->http_error);
     }
 
-    public function testTimeoutError() {
+    public function testTimeoutError()
+    {
         $test = new Test();
         $test->curl->setTimeout(5);
         $test->server('timeout', 'GET', array(
@@ -694,7 +696,8 @@ public function testTimeoutError() {
         $this->assertFalse($test->curl->http_error);
     }
 
-    public function testTimeout() {
+    public function testTimeout()
+    {
         $test = new Test();
         $test->curl->setTimeout(10);
         $test->server('timeout', 'GET', array(