* Updated mariadb chart for MariaDB 2.2.0

Add support for NetworkPolicy, additional labels+annotations and topologySpreadConstraints to charts

* Add support for NetworkPolicy, additional labels+annotations and topologySpreadConstraints to charts
Fixes #415

* Added additional service labels

* Added additional podLabels and documentation

* Added custom labels and annotations for statefulsets and deployments

* Added volume annotations and labels

* Fixed trailing spaces

* Updated releasenotes

* Fixed readme

Bumped to stable major chart version - Allows usage of existing secret reference and added network policy support (#1257)

* Prepared new database configuration

* Improved secure config

* Bumped version