minor #737 Do strict check on environment name in AppKernel.php (gerryvdm)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #737).

Discussion
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Do strict check on environment name in AppKernel.php

Enable strict in_array() comparison when conditionally enabling development bundles.

Commits
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bc671aa Do strict check on environment name

Author: fabpot

app/AppKernel.php

@@ -19,7 +19,7 @@ public function registerBundles()
             new AppBundle\AppBundle(),
         );
 
-        if (in_array($this->getEnvironment(), array('dev', 'test'))) {
+        if (in_array($this->getEnvironment(), array('dev', 'test'), true)) {
             $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
             $bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
             $bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();