Use class 'POSIXct' instead of 'POSIXlt' for time in the 'flow' object.
Missing time steps are now correctly identified using minutes as unit for 'steplength'.
Rename fr() as ratio() in functions and documentation.
Remove function names from Description field in DESCRIPTION.
Add reference to 'hydroroute' to DESCRIPTION.
Depends now on R (>= 4.1.0).
Set RoxygenNote to latest 'roxygen2' version.
First version released on CRAN: 0.1.0