Hi!
I've been trying out your binaries of the web for a while, and I've found the Xenial Qt4 version doesn't work. it depends of obsolete libqt4-webkit and it doesn't exist anymore.
changing it dependency to libqtwebkit4 does the trick.
I tell you here, because I don't know the correct communication channel, and so, also, perhaps can help someone reading.
cheers, and thanks for the project!