Merge branch 'visitor_counter' of https://git.n4vn33t.com/swag/guestbook-ng into visitor_counter

migrations/8/down.sql

@@ -0,0 +1 @@
+DROP TABLE counters;

migrations/8/up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS counters (
+    counter_id SERIAL PRIMARY KEY,
+    counter_name VARCHAR(64),
+    counter_value INTEGER,
+    counter_date TIMESTAMPTZ SET DEFAULT NOW()
+);
+
+INSERT INTO counters (counter_name, counter_value)
+VALUES ('visitor', 1337);