title: Fail to clone repository using ssh on Gitblit
body: <p>I've tried to clone a repository from my gitblit server using SSH, but it showed that "fatal: could not fetch refs from ssh://server-name:29418/repo-name.git"</p>
  
  <p>Here is what I've done:
  <br>1. Create a user named user1 in Gitblit server, and grant it access permission to an empty reposity named test.git.
  <br>2. On my client, usging ssh-keygen to create a key pair 
  <br>3. Upload my public key to the server
  <br>4. Try remote login using ssh, and it succeed.
  <br>5. Try to clone the repository, it failed and show the error message 
  "fatal: could not fetch refs from ssh://user1@server-name:29418/test.git".</p>
  
  <p>Could anyone please tell me where I did wrong please?</p>