Today I improved the GUI a bit. Now it isn't a hack anymore, but a proper user interface.
Bravo! This looks really great now. Unfortunately I still can't figure out my problem with wx, so I couldn't test it yet
However, I have added support for importing and rebroadcasting into webtc:
https://forum.bitcoin.org/index.php?topic=12403.msg384505#msg384505
I'm assuming the file that is written contains just exactly the rawdata, no more no less.