Merge branch '2.3' into 2.7

* 2.3:
  [travis] Remove PHP 7 from allowed failures
  [Finder] Optimize the hot-path
  Update Process.php

Conflicts:
	composer.json
	src/Symfony/Bridge/Doctrine/composer.json
	src/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php

Author: nicolas-grekas

composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": ">=5.3.9",
-        "doctrine/common": "~2.3"
+        "doctrine/common": "~2.4"
     },
     "require-dev": {
         "symfony/phpunit-bridge": "~2.7",
@@ -31,8 +31,8 @@
         "symfony/validator": "~2.5,>=2.5.5",
         "symfony/translation": "~2.0,>=2.0.5",
         "doctrine/data-fixtures": "1.0.*",
-        "doctrine/dbal": "~2.2",
-        "doctrine/orm": "~2.2,>=2.2.3"
+        "doctrine/dbal": "~2.4",
+        "doctrine/orm": "~2.4,>=2.4.5"
     },
     "suggest": {
         "symfony/form": "",