Merge pull request #128 from andrewnicols/MDL-82782 #78

Job	Run time
Collect tests	5s
Code coverage (behat_test)	7m 16s
Test (behat_test)	7m 20s
Code coverage (phpunit_bisect_test)	9m 28s
Test (phpunit_bisect_test)	8m 37s
Code coverage (phpunit_test)	7m 5s
Test (phpunit_test)	6m 59s
Code coverage (runner_test)	1m 47s
Test (runner_test)	1m 47s
Code coverage (behat_bisect_test)	7m 4s
Test (behat_bisect_test)	6m 49s
Code coverage (postjobs_test)	13m 4s
Test (postjobs_test)	12m 44s
	1h 30m 5s

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