updated release notes
updated release notes

v1v/job-dsl-plugin,kamilszymanski/job-dsl-plugin,jenkinsci/job-dsl-plugin,kamilszymanski/job-dsl-plugin,rahulsom/job-dsl-plugin,jenkinsci/job-dsl-plugin,rahulsom/job-dsl-plugin,jenkinsci/job-dsl-plugin,daspilker/job-dsl-plugin,v1v/job-dsl-plugin,daspilker/job-dsl-plugin,daspilker/job-dsl-plugin,v1v/job-dsl-plugin,rahulsom/job-dsl-plugin,kamilszymanski/job-dsl-plugin