We currently test with unparallelized builds,
because there are apparently some race conditions
in the test suite, which I can't trigger locally
but happen on travis.
Squashed commit of the following:
commit 7dceb6dd3a1bdbc39688258bc4dff6eee685a33b
Author: Maximilian Hils <git@maximilianhils.com>
Date: Mon Sep 21 23:00:24 2015 +0200
disable parallelized tests
commit fc0c3f12ee9259162e83026851362925d93b69f2
Author: Maximilian Hils <git@maximilianhils.com>
Date: Mon Sep 21 22:49:19 2015 +0200
fix tests
commit baba3ca5ef49bdbd7aad14f1bf0626738fa3d21c
Author: Maximilian Hils <git@maximilianhils.com>
Date: Mon Sep 21 22:28:20 2015 +0200
fix tests, use py.test
