added db change that should be in last commit

pyrot.database.schema.sql

@@ -82,7 +82,8 @@ CREATE TABLE joins (
     channel_network character varying(40) NOT NULL,
     "user" character varying(31) NOT NULL,
     user_network character varying(40) NOT NULL,
-    joins bigint DEFAULT 0
+    joins bigint DEFAULT 0,
+    stopgreet boolean
 );