As of Rakudo 2015.05, the `unit` declarator is required before using `module`, `class`, `role` or `grammar` declarations (unless it uses a block). Code still using the old blockless semicolon form will throw a warning. This commit stops the warning from appearing in the new Rakudo.
* Add a Botsnack module (and botsnack command) to accept yummy botsnacks * Add a Rot13 module (and rot13 command) to (de)obfuscate ASCII text * Clean up 8ball responses slightly and convert 8ball to a standard command
_s() for pluralizing and friendly-duration() for converting durations in seconds to appropriately larger units for display