simtimer 4.0.0

• Adapt return_value of simtimer::sim_wday() to a character, giving the weekday number (“1” = Monday, “2” = Tuesday, …, “7” = Sunday). Before this function returned the abbreviated weekday (depending on base::Sys.getlocale()). The new solution therefore improves platform independency.
• decoupling of lubridate package by replacement with base functions.

simtimer 3.0.0

• Added a NEWS.md file to track changes to the package.
• Basic functionality as described in readme.md and vignette.