Committing the remotes even if we do not push anything

Dependencies

• [2] 367UBQ6K Forwarding SSH stderr, and progress bar for push
• [*] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [*] YS2HLPX6 Don't propose an empty list of changes to push
• [*] 5HF7C67M push/pull: fixed "changes" arguments
• [*] Q45QHPO4 Feedback on network stuff

Change contents

• edit in pijul/src/commands/pushpull.rs at line 222
  [2.2032]

  [5.35]
  + txn.commit()?;
• edit in pijul/src/commands/pushpull.rs at line 269
  [2.2083]

  [6.1230]
  + txn.commit()?;
• edit in pijul/src/commands/pushpull.rs at line 414
  [7.2228]

  [4.119467]
  + txn.commit()?;