v3.5.4

This release fixes several bugs:

• Disallows 'bundle-remove' from removing non-leaf bundles (bundles that
  are included by other installed bundles).
• Enforces the limitation of 'bundle-remove' to only accept one bundle
  argument.
• Avoids resuming interrupted downloads if the server does not support
  range requests.
• Fixes error handling of 'verify -i -m latest' in case of network
  connectivity issues.
• Fixes verify_fix_path functionality to work with 'bundle-add'.
• Fixes 'check-update -v' if the swupd config files for URLs do not
  exist.
• Fixes error handling for invalid arguments passed to the -p/--path
  option.