Send the reminders at different time by default #218

Job	Run time
unit_tests_artifact / tst_amq / maven_test	2m 56s
unit_tests_artifact / tst_core / maven_test	8m 9s
unit_tests_artifact / tst_api_common / maven_test	4m 1s
unit_tests_artifact / tst_api / maven_test	5m 39s
unit_tests_artifact / tst_iapi / maven_test	3m 26s
unit_tests_artifact / tst_ml / maven_test	3m 10s
unit_tests_artifact / tst_persistence / maven_test	4m 35s
unit_tests_artifact / tst_pubweb / maven_test	3m 35s
unit_tests_artifact / tst_sched / maven_test	3m 16s
unit_tests_artifact / tst_utils / maven_test	2m 50s
unit_tests_artifact / tst_web / maven_test	5m 6s
	46m 43s

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