title: How to delete remote branch (e.g. Github) from command line?
body: <p>I have a git repository in my local machine:<br/>
  I add a new branch called <code>test</code> and add a few commits<br/>
  Then I checkout to <code>master</code> branch and add commits to it.<br/>
  So I use <code>git push --all github</code> and continue working on master.
  After some time I decide to completely remove the <code>test</code> branch and use: <code>git branch -d test</code> and <code>git branch -r -d github/test</code>, but it only deletes the local branch used for tracking the actual <code>test</code> branch as git says:<br/></p>
  
  <blockquote>Deleted remote-tracking branch github/buggy (was acc5a58).</blockquote>
  
  <p>I'm asking if there's a way to actually remove the <code>test</code> branch from github servers from command-line?</p>