After installing the ubuntu configurator the apt-get update gives a warning (I used configure-maxscale-repo-0.1.2.deb):
W: Failed to fetch http://code.mariadb.com/mariadb-maxscale/1.1/repo/ubuntu/dists/trusty/Release Unable to find expected entry 'main/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)
E: Some index files failed to download. They have been ignored, or old ones used instead.
I can install MaxScale though, didn't realize it was a warning in the beginning.