0.2.6-rc0

Change Log

Documentation update to prevent version modification during upgrade. (#95)
Remove deprecated size field. (#108)
Enable DNS annotations to be added to zookeeper headless service (#107)
DockerFile for DockerSwarm Zookeeper image (#122)
Changes for handling Zookeeper cluster scale down (#103, #104, #126, #116)
Correct value displayed in additionalPrinterColumn (#124)
Ensemble fails to bootstrap if headless domain resolution fails (#102)
Minor fixes to Readme.md