Spelling error/typo: constainer -> container
[JENKINS-23025] Allow container IDs contain env. variables
[FIXED JENKINS-23025] Expand parameters in all commands
[maven-release-plugin] prepare release docker-build-step-1.3
[maven-release-plugin] prepare for next development iteration
[FIXED JENKINS-23200] Upgrade to the lates docker-java

To cover latest Docker 1.11 REST API
[maven-release-plugin] prepare release docker-build-step-1.4
[maven-release-plugin] prepare for next development iteration
[FIXED JENKINS-23342] Check, if docker URL was provided
[FIXED JENKINS-23343] Implement validation button for Docker URL in global config
[maven-release-plugin] prepare release docker-build-step-1.5
[maven-release-plugin] prepare for next development iteration
Use ping for pigning the Docker REST endpoint
Switch to com.github.docker-java
[maven-release-plugin] prepare release docker-build-step-1.6
[maven-release-plugin] prepare for next development iteration
Update index.jelly

Update default plugin description text with non-placeholder.
[FIXED JENKINS-23733] Allow user to save global config even if Docker URL is empty