make e2e/monitor.sh work outside gce
Wait for not pending, not for running.
When failures occur, we go to 'Terminated' which can cause
indefinite blocking.
Merge pull request #2944 from deads2k/deads-make-monitoring.sh-run

make e2e/monitor.sh work outside gce
Merge pull request #2979 from brendandburns/e2e

Wait for not pending, not for running.
Add an e2e test for exec liveness probes.  Fix the docker exec integration.