Merge branch '2.5' into 2.6

* 2.5:
  bumped Symfony version to 2.5.10
  updated VERSION for 2.5.9
  updated CHANGELOG for 2.5.9
  bumped Symfony version to 2.3.25
  updated VERSION for 2.3.24
  update CONTRIBUTORS for 2.3.24
  Removed unneeded version requirements
  updated CHANGELOG for 2.3.24
  fixed tests
  [Security] Don't destroy the session on buggy php releases.

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php

Author: fabpot

Tests/ResolvedFormTypeTest.php

@@ -100,10 +100,6 @@ public function testGetOptionsResolver()
 
     public function testCreateBuilder()
     {
-        if (version_compare(\PHPUnit_Runner_Version::id(), '3.7', '<')) {
-            $this->markTestSkipped('This test requires PHPUnit 3.7.');
-        }
-
         $givenOptions = array('a' => 'a_custom', 'c' => 'c_custom');
         $resolvedOptions = array('a' => 'a_custom', 'b' => 'b_default', 'c' => 'c_custom', 'd' => 'd_default');
         $optionsResolver = $this->getMock('Symfony\Component\OptionsResolver\OptionsResolverInterface');
@@ -132,10 +128,6 @@ public function testCreateBuilder()
 
     public function testCreateBuilderWithDataClassOption()
     {
-        if (version_compare(\PHPUnit_Runner_Version::id(), '3.7', '<')) {
-            $this->markTestSkipped('This test requires PHPUnit 3.7.');
-        }
-
         $givenOptions = array('data_class' => 'Foo');
         $resolvedOptions = array('data_class' => '\stdClass');
         $optionsResolver = $this->getMock('Symfony\Component\OptionsResolver\OptionsResolverInterface');
@@ -164,10 +156,6 @@ public function testCreateBuilderWithDataClassOption()
 
     public function testBuildForm()
     {
-        if (version_compare(\PHPUnit_Runner_Version::id(), '3.7', '<')) {
-            $this->markTestSkipped('This test requires PHPUnit 3.7.');
-        }
-
         $test = $this;
         $i = 0;