JAEWON ROH

feat: Add `--all` option to the `ps` CLI command

2

Adds `-a`, `--all` option of `backend.ai ps` command for alias of `backend.ai ps --status ALL`. Resolves #616.

**Is your feature request related to a problem? Please describe.** **Describe the solution you'd like** It will be much comfortable if we could list sessions regardless of their status by...

fix: allow run command without files for exec and vfolder option

2

This PR Fixes #705 - allow no files when exec and vfolder option is supplied - run exec_loop function whether files are offered or not

**Describe the bug** When we use run command like this `backend.ai run --exec "python /home/work/test/hello-world.py" -v test python ./blank`, we have to upload at least one file even we don't...