Allow --debug as the first argument.

You're welcome andymccr.
reverse order of args in adventure execute, for consistency with docs and node adventure execute
cli logging improvements
improve task and adventure related commands
added file list/retrieve
Merge branch 'sprint' of https://github.com/rcbops/opencenter-client into sprint
Merge pull request #56 from hughsaunders/sprint

Merged automatically by jenkins after successful gate test