0.2.5

The main changes and features of this release are:

• Use Percona docker images based on CentOS, this change will allow using any custom docker image based on Percona server (#200, #224 )
• Fix broken command line flag: --image-pull-secret (#232)
• Remove unused flags: --job-grace-time, --http-serve-addr (#232)
• Add --namespace flag to limit operator activity to a certain namespace (#232)
• Configure MySQL to set binlog size limits by setting: max-binlog-size and binlog-space-limit (#235 )
• Add a Helm chart to deploy a MySQL cluster easily (#236)
• Development: Make Skaffold usage more friendly (#228 )