[maven-release-plugin] prepare release tyrus-project-1.2.1

git-svn-id: https://svn.java.net/svn/tyrus~source-code-repository/trunk@758 aa68c1a9-5198-4982-ce7d-eee0ef5d8746
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.java.net/svn/tyrus~source-code-repository/trunk@760 aa68c1a9-5198-4982-ce7d-eee0ef5d8746