The deploy/addons are normally included as binary assets,
they were added to the tarballs by mistake (in d393211c)

Include the hyperkit driver for darwin, just as we include
the kvm driver for linux. Add some targets for it, too.

Not all tar versions can understand suffix

Use consistent method of getting kvm-build-image

Update KERNEL_VERSION to match buildroot config

Remove ingress-nginx default backend.

Improve code readability: rename config unit tests 

Pin the go version used for kvm-build-image

Add comment for better clarity of closures_and_goroutines documentation

Add test to config.ReadConfig

Unset profile when it is deleted

We downgraded the kernel (to 4.15) in 2be51dc6,
but never updated the Makefile from 4c4cd31b...

The default kernel in Buildroot 2018.05.x was
4.16.13, but upgraded in Minikube to 4.16.14

Apparently make hates target names with colon in them, so avoid that.
Seems like we are not using $(REGISTRY), so avoid trying to pull it.

Update latest kubernetes version to v1.15.1

First try the local images, then try to pull from the registry...
If not found in either place, then build a tag a new local image.

Travis build status link should go to master

Currently it goes to the latest Pull Request

It's not needed since nginx 0.20.0.

See the following pull-requests for context:
* https://github.com/kubernetes/ingress-nginx/pull/3126
* https://github.com/kubernetes/ingress-nginx/pull/3156

* Adding cleanup CI scripts to source control

* cleanup

* spelling

* small fixes

* Improve minikube help output by grouping into categories

* consistant colon

* Add configuration category to grouped commands

Upgrade the build image from 1.12.5 to 1.12.7

Fix glog parse error

I've been seeing errors like `Error running command: -p=TestPersistence start --vm-driver=hyperv --hyperv-virtual-switch=primary-virtual-switch --bootstrapper=kubeadm--wait=false --v=10 --logtostderr  --alsologtostderr --v=2 . Output: * minikube v1.2.0 on windows (amd64)` in my hyperV testing which means we need an extra space here.

Switch documentation site to docsy theme, add sample content

hyperv: Run "sudo poweroff" before stopping VM

CI: clean up stale hyperkit and none process and stale inaccessible vbox

Update link to Steve Sloka's article

Upgrade nginx ingress to 0.25.0