Merge branch '4.4'

* 4.4:
  fix PHP 5.6 compatibility
  [Cache] fixed TagAwareAdapter returning invalid cache
  Add plus character `+` to legal mime subtype
  Make Symfony\Contracts\Service\Test\ServiceLocatorTest abstract
  bug #33942 [DI] Add extra type check to php dumper
  [Dotenv] search variable values in ENV first then env file
  [PropertyInfo] Respect property name case when guessing from public method name
  [VarDumper] fix resetting the "bold" state in CliDumper
  Missing argument in method_exists
  SCA: added missing break in a loop

Author: xabbuh

Dumper/CliDumper.php

@@ -28,7 +28,7 @@ class CliDumper extends AbstractDumper
     protected $maxStringWidth = 0;
     protected $styles = [
         // See http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
-        'default' => '38;5;208',
+        'default' => '0;38;5;208',
         'num' => '1;38;5;38',
         'const' => '1;38;5;208',
         'str' => '1;38;5;113',