title: Can i upload my existing code of various sites to bitbucket
body: <p>I am very new to source control.
  I have worked on variety of sites in php without any source control.</p>
  
  <p>I have signed up for bitbucket account. I only want that i keep the code of all sites i have worked there on bitbucket so that during the developement of my current project , i should be able to see how did particular peice of code there.</p>
  
  <p>Can i do that with bitbucket because those are just files and files , theya re not of any source control system like git or mercurial.</p>
  
  <p>DO i need to first install git or mercurial to upload all those files there</p>