Test slim onbluid composer

Author: Julien Neuhart

tests/slim_onbuild_composer/Dockerfile

@@ -7,5 +7,7 @@ FROM thecodingmachine/php:${PHP_VERSION}-${BRANCH}-slim-${BRANCH_VARIANT}
 
 COPY composer.json composer.json
 
+RUN env
+
 # Let's check that GD is available.
 RUN composer install

utils/php_proxy.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#set -e
-
 sudo chown docker:docker /opt/php_env_var_cache.php
 
 REGENERATE=$(/usr/bin/real_php /usr/local/bin/check_php_env_var_changes.php)