Merge pull request #3000 from tobiasd/20161208-convert

only convert tables in friendica DB

util/convert_innodb.sql

@@ -1,4 +1,6 @@
-
+#  script to convert tables from MyISAM to InnoDB
+#  change the %PLACEHOLDER% to the actual name of your Friendica DB
+ 
 SELECT CONCAT('ALTER TABLE ',table_schema,'.',table_name,' engine=InnoDB;') 
 FROM information_schema.tables 
-WHERE engine = 'MyISAM';
+WHERE engine = 'MyISAM' AND  `table_schema` = '%PLACEHOLDER%';