Honor --json in start and stop commands
Merge pull request #328 from spotify/rculbertson/start-stop-json

Honor --json in start and stop commands
Remove command now honors --json flag
Merge pull request #330 from spotify/rculbertson/remove-json

Remove command now honors --json flag
[Tokens] Token support in HTTP resources.
[Tokens] Added token support to the Job class.
[Tokens] Client API support.
[Tokens] CLI support.
[Tokens] Fail requests if token doesn't match
[Tokens] Made tokens optional in MasterModel class plus misc fixes
[Tokens] De-wildcardize imports and stuff.
[Tokens] Added TokenTest