Munger

* Add analytics munger w/ munge heading
* More link autofixes
* Allow running a subset of munges
* Fix repo root detection
* Only process non-preformatted blocks
* Gendocs no longer adds the analytics link; mungedocs does that in a
  second pass.

Don't use a shell array where not needed

Add a doc on debugging services

Improve table of contents generation.

Conformance test update

E2E tests for kubectl logs and patch

Fix table in getting-started-guides README.md

Update single node docker guide to v0.21.2

Add documentation for creating large kubernetes clusters

fake realpath, and standardize treatment of trailing / of dirs in gendoc

Change 'minion' to 'node' in docs

Also removed manually created bookmark anchors
and fixedup links to use automatic bookmarks.

e2e: Add test to pd that disk contents are preserved

Swap order of service and rc, and explain why.

Fix scheduler race

fix merge conflict and footnote problem

fix mungedocs that is break verify on master

change "get minions" to "get nodes"  in docs

move kubectl generated man docs to docs/user-guide/kubectl

Fix patch release instructions

Fix scp of .dockercfg for-loop command