Merge branch '2.8' into 3.0

* 2.8:
  [Console] Application update PHPDoc of add and register methods
  [Config] Extra tests for Config component
  Fixed bugs in names of classes and methods.
  [DoctrineBridge] Fixed php doc
  [FrameworkBundle] Fixed parameters number mismatch declaration
  [BrowserKit] Added test for followRedirect method (POST method)
  Fix the money form type render with Bootstrap3
  [BrowserKit] Uppercase the "GET" method in redirects
  [DomCrawler] Inherit the namespace cache in subcrawlers
  [WebProfilerBundle] Fixed  JSDoc parameter definition
  [HttpFoundation] HttpCache refresh stale responses containing an ETag

Conflicts:
	src/Symfony/Component/Finder/Tests/Shell/CommandTest.php

Author: nicolas-grekas

Constraints/AbstractComparisonValidator.php

@@ -43,7 +43,7 @@ public function validate($value, Constraint $constraint)
         // the DateTime constructor:
         // http://php.net/manual/en/datetime.formats.php
         if (is_string($comparedValue)) {
-            if ($value instanceof \DatetimeImmutable) {
+            if ($value instanceof \DateTimeImmutable) {
                 // If $value is immutable, convert the compared value to a
                 // DateTimeImmutable too
                 $comparedValue = new \DatetimeImmutable($comparedValue);