Merge branch '2.8' into 3.0

* 2.8:
  [Process] Fix transient tests for incremental outputs
  [Console] Add missing `@require` annotation in test
  Fix merge
  [appveyor] Fix failure reporting
  [#17634] move DebugBundle license file
  backport GlobTest from 2.7 branch
  Move licenses according to new best practices
  [FrameworkBundle] Remove unused code in test
  [2.3] Fixed an undefined variable in Glob::toRegex
  simplified a test
  fix container cache key generation
  [Form] fix option name in upgrade file
  [Form] fix option name in changelog
  [Translation] Add resources from fallback locale
  [DependencyInjection] enforce tags to have a name
  [YAML] Refine the return value of Yaml::parse()

Conflicts:
	UPGRADE-2.8.md

Author: nicolas-grekas

Tests/RememberMe/PersistentTokenBasedRememberMeServicesTest.php

@@ -23,6 +23,15 @@
 
 class PersistentTokenBasedRememberMeServicesTest extends \PHPUnit_Framework_TestCase
 {
+    public static function setUpBeforeClass()
+    {
+        try {
+            random_bytes(1);
+        } catch (\Exception $e) {
+            throw new \PHPUnit_Framework_SkippedTestError($e->getMessage());
+        }
+    }
+
     public function testAutoLoginReturnsNullWhenNoCookie()
     {
         $service = $this->getService(null, array('name' => 'foo'));