Make pruning use the correct config and clean up *before* running tests, too.
-rw-r--r-- 405 Rakefile
drwxr-xr-x - bin
drwxr-xr-x - doc
drwxr-xr-x - lib
-rw-r--r-- 761 mailshears.example.conf.yml
-rw-r--r-- 739 mailshears.gemspec
drwxr-xr-x - test