Hi,
I am on Lubuntu 14.04. I installed Deluge from the ubuntu repositires and got 1.3.6. I also tried to use the Deluge PPA and it didn't work with this version of Ubuntu.
W: Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found