update version of Archipel GUI to 0.3.1
update version of Archipel GUI to 0.3.1

ArchipelProject/Archipel,ArchipelProject/Archipel,rmoorman/Archipel,CyrilPeponnet/Archipel,rmoorman/Archipel,fr34k8/Archipel,CyrilPeponnet/Archipel,rmoorman/Archipel,ruthger/Archipel,CyrilPeponnet/Archipel,CyrilPeponnet/Archipel,ArchipelProject/Archipel,fr34k8/Archipel,ruthger/Archipel,fr34k8/Archipel,ArchipelProject/Archipel,rmoorman/Archipel,fr34k8/Archipel,ruthger/Archipel,ruthger/Archipel,ArchipelProject/Archipel,CyrilPeponnet/Archipel,rmoorman/Archipel,fr34k8/Archipel,ruthger/Archipel