title: Git repo hosted on Bitbucket.. Count each day where I pushed a commit
body: <p>I'd like to estimate how much I worked on a project.
  I'd like to count each day where I made a commit.
  So I'll know how many days I did any work at all on this project.</p>
  
  <p>Bitbucket doesnt seem to have info like that available in its web-app (unlike github)</p>
  
  <p>But can you get this sort of info using git commands?</p>