Make owner an optional argument with newer version of actuated

Changelog for v0.1.3:

Commits
e951604 Make owner an optional argument with newer version of actuated by @alexellis
bf1af0b Make owner optional for runners and jobs command(s) by @alexellis
4b0bc93 Clarify default for token by @alexellis

Changes: v0.1.2...v0.1.3

Generated by Derek