jefferis/nat.utils: nat.utils 0.5.1

NB This release includes all changes since v0.4 fixes gzip.crc bug on solaris (#8, thanks to Brian Ripley) dev: simplify gzip.crc test and therefore no longer depend on digest nat.utils 0.5 new function common_path finds common prefix of multiple paths new function split_path breaks a path into its components, optionally including file separators. file.hardlink is now defunct dev: imports utils::read.table dev: extra tests and code coverage support nat.utils 0.4.3 bugfix: abs2rel handles multiple paths without a warning bugfix: zipinfo quotes files dev: upgrade to roxygen2 v4.0.2 and better rstudio settings nat.utils 0.4.2 bugfix: export is.gzip bugfix: test error nat.utils 0.4.1 add is.gzip function RunCmdForNewerInput now has a Force option (FALSE by default) that can be used to override mtime checks and run the command if possible. dev: upgrade to roxygen2 v