reda 0.5.0

New features

• Add function Recur as a successor or function Survr for model formula
  response.

• Added a new package vignette introducing the function Recur.

• Added a new argument adjustRiskset to the method mcf.formula for
  specifying whether to adjust the size of risk set. The cumulative sample mean
  function estimates will be computed by setting adjustRiskset = FALSE.

• Added a new option of "CSV" for cumulative sample variance estimates to the
  argument variance of the method mcf.formula.

Major changes

• The function Survr is deprecated since this version and will be removed in
  future.

• Added implementation of nonparametric MCF estimates in C++ with help of
  Rcpp and replaced original implementation in R with the new
  implementation for a better computational performance.

Minor changes

• Updated testing suite by using tinytest instead of testthat.

Bug fixes

• Fixed numRisk (the size of risk set) for tied censoring times in
  mcf.formula objects returned from method mcf.formula. Thanks William
  Anderson (wnilesanderson AT gmail.com) for bug reporting with detailed
  examples.