Stylistically revised the vignette.
Updated the documentation with roxygen2 (4.0.2.9000).
Moved unit tests to tests/ as is now recommended practice.
Reimplemented getSdNaive-SmoothedPG; added a unit test.
Commented the defunct functions so they won't be called any more.
Removed Import to rje, which was only needed by defunct functions.
Added set.seed to SmoothedPG-SpecDistr example.
Some updates to documentation.
Updated NEWS.