utf support for autoresponder strings

When I installed autoresponder on my site (which is in hebrew) I noticed that the hebrew strings I put in where not stored in hebrew.
This because the autoresponder table where with the swedish_latin collation (mysql's default).
I noticed that other modules like views have /*!40100 DEFAULT CHARACTER SET utf8 */ in the end of the table definitions.
Here is a patch to the autoresponder.install file that will probably help other people who need utf support in their autoresponder strings.