spotify/helios — pull request #267 by davidxia (2014-11-04 20:18:13+00:00)
Title: Use consistent jobPrefix for ProberTest

Use the same tag for jobs so that SystemTestBase can cleanup leftover
containers.

Related to commit 0a5b0f8e4563818541f4884e5c531ed89dcc4d6b

Fixes #263