fix(aws): error with other instances without tags

while starting the cluster, and having already other non-kubernetes
instances active without tags, an KeyError throwed.
enhancement(aws): checks for existing kubernetes vpc first

without this check, kube-up creates a new vpc every time. Now it will
reuse the vpc tagged Kubernetes.
enhancement(aws): using iam role to pass aws credentials
enhancement(aws): added logging variable and more verbose output
fix(aws): fix with non us standard region
fix(aws): cloud provider wasn't set, corrected cloud config syntax
Specify AWS_DEFAULT_REGION to match configured region

The AWS CLI is configured with a default region, but it might not match
the configured Kubernetes region.  Specify the region to be sure.
Admission control proposal
Version 2.0 of proposal
Store all of the master's persistent data on a separate "data"
persistent disk when running on GCE.

I'll follow up soon with a second PR that enables kube-push to
completely bring down the master VM and replace it with a new one.
Initial addition of groups to user/policy
When connections are broken on Watch, write fewer errors to logs

Watch depends on long running connections, which intervening proxies
may break without the control of the remote server. Specific errors
handled are io.EOF, io.EOF wrapped by *url.Error, http connection
reset errors (caused by race conditions in golang http code), and
connection reset by peer (simply tolerated).
Merge pull request #3037 from smarterclayton/hide_spurious_watch_errors

When connections are broken on Watch, write fewer errors to logs
Fix the e2e test to remove a race.
Really upgrade fsouza/go-dockerclient pkg to latest revision, so that we can have
Error and OOMKilled from docker ContainerStatus.
Update kubelet package on latest go-dockerclient package.
Merge pull request #3039 from brendandburns/e2e

Remove some dead code.
Merge pull request #3035 from dchen1107/master

Update fsouza/go-dockerclient pkg to latest revision and fix some compiling issues.
done
Sticky Session Implementation
- Added process to cleanup stale session affinity records
- Automatically set cloud provided load balancer for sticky session if the service requires it - Note, this only works on GCE right now.
- Changed sessionAffinityMap a map to pointers instead of structs to improve performance
- Commented out cookie and protocol from sessionAffinityDetail to avoid confusion as it is not yet implemented.