increase http request timeout in core tests to make them pass on low-speed connections

tests/PHPUnit/Core/HttpTest.php

@@ -52,7 +52,7 @@ class HttpTest extends PHPUnit_Framework_TestCase
     public function testFetchLatestZip()
     {
         $destinationPath = PIWIK_USER_PATH . '/tmp/latest/latest.zip';
-        Http::fetchRemoteFile('http://builds.piwik.org/latest.zip', $destinationPath, 3);
+        Http::fetchRemoteFile('http://builds.piwik.org/latest.zip', $destinationPath, 30);
         $this->assertFileExists($destinationPath);
         $this->assertGreaterThan(0, filesize($destinationPath));
     }
@@ -67,7 +67,7 @@ class HttpTest extends PHPUnit_Framework_TestCase
         $result = Http::sendHttpRequestBy(
             $method,
             'http://builds.piwik.org/latest.zip',
-            5,
+            30,
             $userAgent = null,
             $destinationPath = null,
             $file = null,
@@ -100,7 +100,7 @@ class HttpTest extends PHPUnit_Framework_TestCase
         $result = Http::sendHttpRequestBy(
             $method,
             'http://builds.piwik.org/latest.zip',
-            5,
+            30,
             $userAgent = null,
             $destinationPath = null,
             $file = null,