v3.4.0

• ✨ Issue #86: Save local size during download.
• ✨ Issue #11: Add FTP support through a new client based on ftputil.
• ⚡️ Issue #106: Improve SFTP client performance for large file transfers.
• 🐛 PR #102: Fix torrent ingestion crash due to NOT NULL announce constraint (Thx @Monkee-code).
• ♻️ Replace custom formatting utilities with humanize.
• 📝 Issue #93: Add documentation about overriding the cron schedule.