Version 2.44.4
- Fix #341 - Don't infinite-loop with cyclic pattern references.
- Fix #342 - Don't crash if a <use> node references one of its ancestors.
- Fix #344 - Don't panic when a viewBox has overflowing numbers.
- Fix #345 - Fix panics due to bad path parsing and overflows in
  surface size.
- Cleanups and refactoring (Paolo Borelli, Linus Unnebäck, Federico Mena).