[ci skip] Update TODO and CHANGES files prior to releasing new version.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
Update Gemspec to include benchmarks and tests.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
FizzBuzz, version 0.0.5

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>