We want to make the output match the yml expectations

I want this change so that if I need to modify a cop I can use
—show-cop, find the right one, and then copy/paste the body into the
yml and do no extra work to format it for YAML documents.
Fix --show-cops spec example.
Make --show-cops [cops...] output YAML compliant.

Support comma separated list of cops after --show-cops.
Fix sorting order in enabled.yml.

Some cops had been put under the wrong type (Lint instead of Style and vice versa). Some were just not in alphabetical order.
Merge pull request #722 from jonas054/improve_show_cop_output

Improve --show-cops output