bump version to 0.0.4
Use Mission#zombie_count when rendering output.
Add Method#full_name, which returns Module::Class#method style names
Limit --format options to: report, csv
Add TODO to README about grepping twice for methods w/ the same name
Make ZombieScout::Method a real class, with...methods.
Use 'Class#method' format in output, not just method name.
Sort output by filename first, descending flog score sceond.

This makes it easier to focus on one file at a time.

Thanks @benjaminoakes!
Update README sample outputs to reflect showing 'Class#method', and sorting by file