Just a quick update: While the devs can't pinpoint what exactly is causing this false positive, it's been reported to Qihoo360 and Avast as a false positive. They will hopefully be able to sort out why it was identified as containing a Trojan and take a further look on the code.
The only indication is that it is something in the file Usp10.dll file being identified as "QVM06.Gen"-trojan. It doesn't really give much info on exactly what that is or why.
I would love to promise you an update here, but chances are that I'll forget about it. Best thing will be to check the file again in a weeks time or so (no idea how long it takes for Qihoo and Avast to look into it) to see if it's cleared.