kde1d 1.0.0

NEW FEATURES

• optimal plug-in bandwidth selection for all polynomial degrees (#38).

• avoid randomness through simplified, deterministic jittering, see
  equi_jitter() (#40).

• removed dependency cctools.

• headers in inst/include can be used as standalone C++ library with
  convenience wrappers for R (#41).

• (several times) faster pkde1d(), qkde1d(), and rkde1d() due to
  a more clever algorithm for numerical integration (#42).

• faster kde1d() thanks to the Fast Fourier Transform (#43).

BUG FIXES

• improvements to numerical stability, inter- and extrapolation (#32, #35,
  #37).