- Fix to support ccache better
 - Fixes to support icecream better
 - Fix to support clang on Windows
 - Improvements to %i, %#b, and %#B handling
 - Initial support for ignoring unpredictable outputs (https://github.com/gittup/tup/issues/182)
 - Now depends on libpcre, unless tup.config contains CONFIG_TUP_USE_SYSTEM_PCRE=n (the default on Windows)