DX: embed test app inside bundle

tests/app/config/packages/dev/monolog.yaml

@@ -0,0 +1,21 @@
+monolog:
+    handlers:
+        main:
+            type: stream
+            path: "%kernel.logs_dir%/%kernel.environment%.log"
+            level: debug
+            channels: ["!event"]
+        # uncomment to get logging in your browser
+        # you may have to allow bigger header sizes in your Web server configuration
+        #firephp:
+        #    type: firephp
+        #    level: info
+        #chromephp:
+        #    type: chromephp
+        #    level: info
+        console:
+            type: console
+            process_psr_3_messages: false
+            channels: ['!event', '!doctrine', '!console']
+            bubble: false
+