backport more figures from slides

import diagrams from slides

toc_var: temporarily disable ack

until we have a real one

Conclusion: conclude

Evaluation: early survey result analysis

Evaluation: early survey statistics

Evaluation: survey data formatting draft

Evaluation: survey design

appendix: proper chapter formatting

appendix: survey items

RelatedWorks: multi-tenancy: expand

explain more on need of admission control early

graphic tweaks

RelatedWorks: multi-tenancy: beyond cscloud

Architecture: provide brief web overview before impl

Evaluation: update final kubectl shell quota for survey

RelatedWorks: multi-tenancy: rephrase

RelatedWorks: multi-tenancy model of kubernetes

Introduction: point out multi-tenancy hardness

correction: MutatingAdmissionPolicy isn't there yet

only feature gate slip though 1.30, actual impl isn't mainlined as of
yet