Added basic IP tracker functionality

db/migrations/0005_add_ip_table.rb

@@ -0,0 +1,18 @@
+Sequel.migration do
+
+  up do
+    create_table(:ip_addresses) do
+      primary_key :id
+      String :address, null: false
+      String :dns_name
+      String :comment
+      DateTime :created_at, default: Sequel::CURRENT_TIMESTAMP
+      DateTime :updated_at, default: Sequel::CURRENT_TIMESTAMP
+    end
+  end
+
+  down do
+    drop_table(:ip_addresses)
+  end
+
+end