Updated version and RELEASENOTES.md for release 1.2.1

 Updated version and RELEASENOTES.md for release 1.2.1

Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/cord…

…ova-plugin-dialogs

CB-9202 updated repo url to github mirror in package.json

CB-9202 updated repo url to github mirror in package.json

CB-8959 Updated version and RELEASENOTES.md for release 1.1.0

CB-8959 Updated version and RELEASENOTES.md for release 1.1.0

CB-8858 Updated version in package.json for release 1.0.0

CB-8858 Updated version in package.json for release 1.0.0

CB-8429 Updated version and RELEASENOTES.md for release 0.3.0