adds frisby integration tests

Makefile

@@ -1,5 +1,8 @@
 run:
-	SKIP_CAPTCHA=1 go run *.go
+	TEST_MODE=1 go run *.go
+
+tests:
+	go run test/main.go
 
 db:
 	echo 'CREATE TABLE "notes" (`id` VARCHAR(6) UNIQUE PRIMARY KEY, `text` TEXT, `published` TIMESTAMP DEFAULT CURRENT_TIMESTAMP, `edited` TIMESTAMP DEFAULT NULL, `password` VARCHAR(16), `views` INTEGER DEFAULT 0);' | sqlite3 database.sqlite