fix(launcher): Log state transitions in debug (#3294)
fix(launcher): Log state transitions in debug (#3294)

See #3290
karma-runner/karma,maksimr/karma,johnjbarton/karma,johnjbarton/karma,maksimr/karma,johnjbarton/karma,karma-runner/karma,david-garcia-nete/karma,karma-runner/karma,maksimr/karma,david-garcia-nete/karma,johnjbarton/karma,karma-runner/karma,david-garcia-nete/karma