Changes from version 1.0.3 to 1.0.4:
  * Changed Fortran file extensions from f95 to f90 for portability reasons.

Changes from version 1.0.2 to 1.0.3:
  * Fixed a bug which made pure MA models to throw an error.
  * Fixed issue with try-error due to upcoming changes in R4.0.0.
  
Changes from version 1.0.1 to 1.0.2:
  * Corrected citations.

Changes from version 1.0.0 to 1.0.1:
  * Corrected the computation of the standard errors for prediction limits.
  * Changed testthat tests due to changes in testthat package.
  * Updated citation information.