vpcPlot() where input data frame for models did not
stratify all the time when the columns were upper case.plot() now returns a named list of lists so that users can more easily
choose which plots to include, if all plots are not desired. Or the user
could use those names as the basis of figure captions (fix #8).
Models without eta values (between subject variability) now have more consistent plotting to models with eta values (fix #18).
The package was updated to align with changes in ggplot2.
The package was updated to skip tests with "focei" and linCmt()
Added fixes for upcoming 'ggplot2' 3.4 release
Added changes for the generalized log-likelihood supported by 'nlmixr2est'
Added a NEWS.md file to track changes to the package.