Maintenance release addressing the CRAN check NOTEs. No user-visible changes to the package functionality.
Authors@R field to DESCRIPTION, replacing the free-text Author
and Maintainer fields.inst/CITATION to use bibentry() and c(person(...)) instead of
the deprecated citEntry() and personList().flowdata: the DOI in the \source section now uses \doi{} markup instead
of a \url{} link.flowdata: fixed lost braces in the \format section by marking up the flow
units as \eqn{m^{3}}{m^3}/s.