1.9.6-tectonic.2 merge back to 1.9.6 (#3341)

* Bumped KVO and Tectonic versions to support upgrading from 1.8.14

* Cherrypick of 34bd73b
Fix vulnerability in nokogiri (#3326)

This should fix a Github warning about vulnerability in nokogiri package

* Cherry-pick of 4402fb4
Fixed incorrect var name in rspec

* bump kvo from -dev to release quay repo

The appversion for `kubernetes` remains same.

* Bumped KVO to v1.9.6-kvo.5

* Bumped KVO + hyperkube