FeLaMiMail from SVN trunk displays inline images now

Hello!
Last night i commited the needed changes to display inline images in HTML
Emails.
I tried it with all my spam emails and it seem to work without any problems.
It only works with FeLaMiMail from the developers version(aka SVN trunk).

any suggestion on how to put the SVN version of felamimail into a 1.4 stable setup? i want to keep the stable setup but i really need to have the images shown in the email.