squat 0.4.0

New features

• Adaptation to new API of fdacluster.
• Added rotation invariant elastic distance.
• Added no alignment option in distance matrix computation via SRVF.
• Added roll-pitch-yaw representation.
• Added format()/print() pair correctly.

Minor improvements and bug fixes

• Remove dependency to purrr in favor of base R *apply() family to reduce
  dependency trail.
• Replace furrr with future.apply for consistency with the removal of
  purrr.
• Update roxygen version.
• Fix bug in predict from PCA with new data. Properly compute L2 inner product.
• Fix bug in predict from prcomp object.