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.
unit test for #2815, as requested by @brendandburns
Add Type() method on flags for compat with pflag library

Allows our flag objects to be used with both golang flags and pflags
Fixes #1605: make ErrorList introspectable by replacing ErrorList and
ErrorList#ToError with []error and util.SliceToError() respectively
Add support for TAP (test anything protocol) output
Count only non-dead pods in replicationController current state replicas count.
Rename ServerOp to Operation in v1beta3 and internal

Add the appropriate rename logic internally.
PodStatus Message needs to be round-trippable
Status should be a ListMeta, not ObjectMeta internally
Add a side-by-side diff option for verbose output

Make regular diff better by eliding pointer values
test-cmd should test all api versions
Prevent infinite loop in apiserver errorJSON
fixed minor formatting
Fix error in Fluenetd->ES colo service