fixing the protocol

Dependencies

• [2] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [3] CCLLB7OI Upgrading to Sanakirja 0.15 + version bump

Change contents

• edit in pijul/src/commands/protocol.rs at line 173
  [2.130096]

  [2.130096]
  + std::fs::create_dir_all(path.parent().unwrap())?;
• replacement in pijul/src/commands/protocol.rs at line 181
  [2.130516]→[2.130516:130577](∅→∅)
  − applied.insert(cap[4].to_string(), channel);
  [2.130516]

  [2.130577]
  + applied.insert(cap[1].to_string(), channel);