From the master branch of xplot

• Make sure that you are in sync with the master branch of the upstream remote.
• In file xplot_config.hpp, set the macros for XPLOT_VERSION_MAJOR, XPLOT_VERSION_MINOR and XPLOT_VERSION_PATCH to the desired values.
• Update the readme file w.r.t. dependencies on xplot
• Stage the changes (git add), commit the changes (git commit) and add a tag of the form Major.minor.patch. It is important to not add any other content to the tag name.
• Push the new commit and tag to the main repository. (git push, and git push --tags)