Broadcast messages are now stored in database

lib/dbmapping/broadcast.go

@@ -0,0 +1,19 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
+
+package dbmapping
+
+import (
+	// stdlib
+	"time"
+)
+
+// Broadcast is a struct, which represents `broadcast` table item in databse.
+type Broadcast struct {
+	ID            int       `db:"id"`
+	Text          string    `db:"text"`
+	BroadcastType string    `db:"broadcast_type"`
+	Status        string    `db:"status"`
+	AuthorID      int       `db:"author_id"`
+	CreatedAt     time.Time `db:"created_at"`
+}