pkgdiff 0.2.0

• Handle Base R packages on pkg_stabilty() and repo_stability().
• Fixed bug in pkg_info() that was affecting some specific packages.

pkgdiff 0.1.9

• Added pkg_info(), pkg_versions(), pkg_diff(), and pkg_stability().
• Added pkg_repo(), repo_stability() and repo_breakages().
• Added all print functions.
• Created web site.
• Created Github cache.
• Many fixes and testing.
• Initial release to CRAN.