[ Samuel Bronson ] * Don't require Java stuff just to gather test results we don't look at. * Disable babeltrace; it doesn't build everywhere. Thanks to Julien Cristau for the heads up. * Go back to python2; it's causing people trouble and doko never actually explained the need. Thanks to Ben Longbons for the report and Jakub Wilk for corroborating it. (Closes: #748711, Reopens: #727003)