Add basic relaybot support. Fixes #20

database/upgrades/2019-11-10-full-member-state-store.go

@@ -0,0 +1,16 @@
+package upgrades
+
+import (
+	"database/sql"
+)
+
+func init() {
+	upgrades[10] = upgrade{"Add columns to store full member info in state store", func(tx *sql.Tx, ctx context) error {
+		_, err := tx.Exec(`ALTER TABLE mx_user_profile ADD COLUMN displayname TEXT`)
+		if err != nil {
+			return err
+		}
+		_, err = tx.Exec(`ALTER TABLE mx_user_profile ADD COLUMN avatar_url VARCHAR(255)`)
+		return err
+	}}
+}