RELEASEPROCESS.md

Release process

1. Get the latest.
   1. Run: git checkout master.
   2. Run: git pull.
2. Mark all "Unreleased" changes to be in the version
   1. Modify HISTORY.md by just adding a new headline right under the ## Unreleased
      so its right above te latest changes. Example:

      ## Unreleased
      
      ## 2.X.Y
      
      ### Changes
      * foo...
      * bar...
      

   2. Commit and push the changed HISTORY.md to master.
      1. Run ala git commmit -m 'preparing 2.X.Y' HISTORY.md.
      2. Run ala git push origin master.
3. Draft and publish a release on master branch in github.
   Put the latest part of the HISTORY.md in the release notes.