I have commented out two lines in root/static/scripts/tests/RelationshipEditor.js because those tests are failing. Please look into this.
I was running the tests with carton exec – prove -v t/qunit.t, using the Ubuntu supplied phantomjs (1.4.0) and the current beta branch.
https://github.com/mwiencek/musicbrainz-server/commit/98ed4029b1d875b1a9890dde83e5b189e4a88370
seems to fix this.