Cancel remaining tests if one test was timed out

Save some time by cancelling remainig tests if one test was timed out.

Blueprint test-engine-utils

Change-Id: Ic3b3a3a7fc825291bae63f6584fcfb906fd7c0cf
Fix bug in CLI task.start method

Do not use --config as a parameter name

Fixes bug 1229262

Change-Id: I55f8f2a2dc033ce04f5a86ac704e23409193af1b
Merge "Cancel remaining tests if one test was timed out"