Delete job given job path

[dogonthehorizon]

As a Bartlett user I would like the ability to delete jobs, so that I can keep my Jenkins tidy.

AC:

• [x] user can delete a single job given a job path
• [x] user can delete a folder given a job path
• [x] user can delete many jobs given 1+ paths

[dogonthehorizon]

Thought: maybe makes the most sense to add this to the config sub-command under some -d and/or --delete flag.