Dowml

- [60] 'dump' was creating invalid files for inline content
- [58] Sort list of available versions
- [59] Upgrade default version to 22.1

- [57] 'cancel' accepts job specifications such as * and n-m
- [55] We can't delete the Watson Studio job when connected to a CPD
instance. But at least we can stop warning about that...
- [53] Store the details first when dumping a job, in case there's
an error later in the process
- [56] Get dowml to work with on-prem CPD instances through tokens

- [51] Add 'L' to the list of known sizes
- [50] Don't store the log on disk when downloading it for display
- [49] Enable saving one REST call when Python API is recent enough

- [48] Parameter '--api-key' must override whatever was found through
the environment

- [47] Add a 'api-key' parameter to the Interactive
- [40] Introduce cancel_job function. Deprecate hard parameter in call
to delete_job, which now really deletes the job by default.

- [45] Add readonly 'url' and 'space_id' attributes to the lib
- [44] Speed-up job creation by caching deployment information
- [43] Add 'status' command in the Interactive
- [42] Rename submodule 'dowmllib' to simply 'lib'