Configure test fixtures and implement conference page functional test

Makefile

@@ -0,0 +1,9 @@
+SHELL := /bin/bash
+
+tests:
+	symfony console doctrine:database:drop --force --env=test || true
+	symfony console doctrine:database:create --env=test
+	symfony console doctrine:migrations:migrate -n --env=test
+	symfony console doctrine:fixtures:load -n --env=test
+	symfony php bin/phpunit $(MAKECMDGOALS)
+.PHONY: tests