CRAN release v0.3.0

dupree 0.3.0

Breaking changes

• dupree(), dupree_package() and dupree_dir() return an object of class
  dups, rather than a data-frame. Methods to convert to data.frame / tibble
  are provided though (#60, @russHyde)

Minor changes and bug-fixes

• Changed the default min_block_size to 40 throughout (#68, @russHyde)

• Rewrote a test-helper function that compares two list-column-containing
  tibbles: necessitated by a change in dplyr=1.0 (#65, @russHyde)

• dupree_package() and dupree_dir() fail early when provided a non-existing
  path (#67, @russHyde)

• dupree_package() asserts that a path has a DESCRIPTION and an R/ subdir
  present (#57, @russHyde)