Fix bug in autoscaling test. I was not waiting for initial instance to launch before changing capacity. It used to work but we did see failures sometimes. We really should wait for scaling to complete before making more changes.  The test is for changing launch configs and the test performs as it should now. We may have exposed a performance regression (one that had been "felt" in 4.0) with new ServSep architecture. Or perhaps there are messages being lost when actions are fired too close together.

This change also has some extra debug for ELB Stickiness test.
Fix cleanup_artifacts for more than a single reservation
Fix issue with on cleanup when no reservations were created.

Change-Id: I096c490f984f5583a94cb22014b5d7998de0439e
Wait 20 seconds for address to reset after release

Change-Id: I1975e022c812052609ffbba37a8b6417c201067a
Revert "Hack for EUCA-9726"

This reverts commit 9ba433a39126a60ec68791b52998251e7f239545.