title: GIT: Whats the Difference between a Pull Request and a Merge?
body: <p>On services like Bitbucket and Github, one has the option to create a Pull Request and a Merge. What are all of the differences between the two?</p>
  <p>Differences I currently know of:</p>
  <ul>
  <li>Ability to approve or reject request</li>
  <li>Ability to provide add a descriptive message with the request</li>
  </ul>
  <p>Other than that it seems like a pull request is just essentially a merge.. correct?</p>