mark 0.8.0

breaking changes

• echo() is now removed; use echo::echo() instead #214
• includes tryn() for running an expression a maximum number of times before failure #80

fixes

• unlist0() no longer fails when input list is not named #220

improvements

• match_param() has been improved
  • can now return multiple matches #191, and can return partial matches
  • error message readability improved for matchParamMatchError#194
  • choices can now be a list of formula elements, preserving the return value

new features

• file_copy_md5() added as a wrapper for fs::file_copy() but provides MD5 checks through tools::md5sum() to avoid overwriting files that had no content changes #207
• write_file_md5() added as a general writing function and utilizes file_copy_md5() for MD5 checks (including some compression options) #207, #224