Changes in Version 0.2.1

  * Calendar accepts POSIX* in holidays
  
  * Calendar's start.date and end.date are set to default values only 
  when their aren't provided
  
  * Docs updated

Changes in Version 0.2.1

  * changed print.Calendar to be more informative
  
  * new offset function create (add.bizdays alias)
  
  * offset (add.bizdays) accepts vector of numbers (n argument)
  
  * updated documentation
  
  * added vignettes

  * renamed default.calendar to Calendar(name='Actual/365', dib=365)

Changes in Version 0.2.0

  * print.Calendar returns invisible(x) and shows weekdays
  
  * Calendar raises a warning when holidays is set and weekdays is not
  
  * Calendar's dib and name defaults to NULL
  
  * default.calendar is Calendar(name='Actual', dib=365)
  
  * bizyears raises an error if dib is NULL
  
  * add.bizdays performance improved

Changes in Version 0.1.5

  * add function has been renamed to add.bizdays

  * Calendar's argument weekdays default value is NULL

  * Calendar has new arguments: dib, adjust.from, adjust.to

  * travis-ci integration

  * New functions: bizyears, bizyearse, bizdayse
  
  * bizdays accepts NA values in both arguments, from and to

Changes in Version 0.1.4

  * bizdays, adjust.previous, adjust.next and is.bizday accept POSIXct
  and POSIXlt objects.
  
  * bizdays, adjust.previous, adjust.next and is.bizday handle NA values
  without break

  * bizdays, adjust.next and adjust.previous are fast
