In a heavily contested AWS account (that was close to rate limits)
it took more than 2m for the load balancer to begin accepting
requests. This increases the timeout to 3m to give upgrade tests
more of a chance to pass in a contentious environment.
Respect PDBs during node upgrades and add test coverage to the
ServiceTest upgrade test. Modified that test so that we include pod
anti-affinity constraints and a PDB.
There were already a few tests just using the default framework
namespace instead of creating a new one. Also there are several
testing libraries that use the default framework's default namespace
as well. It's just easier this way.
