Emailqueue v3.3

Now Emailqueue supports Emoji ➡️➡️➡️ ✉️🚀! You can use Emoji both in the mail body and in the subject. Update easily from older versions by executing the provided install/migrate_from_v3.2_to_v3.2.sql file (it might take a while!). Also, now errors are thrown via a standard PHP Exception, so you can catch errors that might happen easily.