add linting jobs to one recipe

add rubocop
move linters to own recipe
update job commands
add linting jobs to one recipe

add rubocop
move linters to own recipe
update job commands
Merge branch 'lint_work_in_progress' of github.com:stephenlauck/pipeline into lint_work_in_progress

Conflicts:
	README.md
bump version and add changelog
Merge pull request #51 from stephenlauck/lint_work_in_progress

add linting jobs to one recipe