new function non_nums
Used lintr and styler packages to adjust code. Rename function compare.stats() to compare_stats()
update vignette DescriptiveStatsObeu
fix cran warnings and code structure
new functions CV, multisub, compare.stats
update manuals, vignettes and small fixes in functions
Add openspending.ds function to be used in OpenBudgets.eu
tools.
First stable version of the library.