clean 2.0.0

Upon CRAN request, this package was renamed cleaner
This package has now become a wrapper around the cleaner package and contains no functions on its own.

clean 1.1.0

Added support for currency as a new class: as.currency() and clean_currency(). They also come with 'S3 methods' for print, format, sum, min and max.
Added clean_POSIXct() to clean date/time objects
top_freq() now correctly selects bottoms items using negative a number for n
freq.default() is now exported for use in other packages
All numeric calculation in the header of frequency tables now use the same algorithm as used by Minitab and SPSS (see 'Type 6' on stats::quantile())
More robust results for clean_character(), it also keeps in-between spaces now
clean_numeric() now supports currency
Fix for freq() where the precentage of NAs in the header was not calculated right