title: Delete tmp files with git
body: <p>I'm using git in my project but I'm new with this control version and I now have a doubt (problem) and I don't know like resolve it. I did commit to my local repo and remote repo also but I didn't ignore some files ie: .classpath, .project, . setting,... also I didn't ignore folders like: target, servers,.. and now they are in my repors and I want to ignore them but I have added .gitignore file with this exceptions and they are in my repors. How could I ignore them and what they are not in my repors?</p>
  
  <p>Thanks.</p>