Respect LARAVEL_ENV variable

Laravel **should** respect `LARAVEL_ENV` variable when running through CLI

laravel/core.php

@@ -171,9 +171,9 @@ Request::$foundation = RequestFoundation::createFromGlobals();
 
 if (Request::cli())
 {
-	$environment = get_cli_option('env');
+	$environment = get_cli_option('env', getenv('LARAVEL_ENV'));
 
-	if ( ! isset($environment))
+	if (empty($environment))
 	{
 		$environment = Request::detect_env($environments, gethostname());
 	}
@@ -240,4 +240,4 @@ $bundles = require path('app').'bundles'.EXT;
 foreach ($bundles as $bundle => $config)
 {
 	Bundle::register($bundle, $config);
-}
\ No newline at end of file
+}