v0.2.2

New features

• The estimation of the interim multipliers was corrected. Delay multipliers are
  introduced along with the interim and they are now returned as a list with a
  data.frame for each variable containing the delay and interim multipliers for
  each period. Also, the maximum period for delay and interim multipliers was
  raised to 200.

• ardl() is now a generic function. The default method constructs an ardl
  model as it used to. The other method takes an uecm model and converts it into
  an ardl.

• recm() can now estimate models which include 0 lags in the order of a
  variable.

Documentation update

• Updated the formulas for the uecm and recm equations making them more precise.

New data

• Added a new dataset, the UK earnings equation data from Natsiopoulos and
  Tzeremes (2022). These are the data used to extend the study of Pesaran et al.
  (2001).

Bug fix

• multipliers() does not divide the short-run multipliers by the adjustment
  factor anymore (correction).

Minor changes

• Added corresponding variable names to ARDL orders.