Fix: GRANT works for all MySQL/MariaDB variants

Including AWS RDS MariaDB. See https://github.com/WordOps/WordOps/issues/263

wo/cli/plugins/site_functions.py

@@ -219,7 +219,7 @@ def setupdatabase(self, data):
     Log.debug(self, "Setting up user privileges")
     try:
         WOMysql.execute(self,
-                        "grant all privileges on `{0}`.* to `{1}`@`{2}`"
+                        "grant select, insert, update, delete, create, drop, references, index, alter, create temporary tables, lock tables, execute, create view, show view, create routine, alter routine, event, trigger on `{0}`.* to `{1}`@`{2}`"
                         .format(wo_db_name,
                                 wo_db_username, wo_mysql_grant_host))
     except StatementExcecutionError: