- `docker ps` now fully supports `--filter` flags
- Generate `Status` in `docker ps` dynamically. "Up X seconds" is now
real-time.
- Misc cleanup.
Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
- Use start_with_busybox everywhere it's possible.
- Start only what we need.
- Improved correctness of a few tests at the same time.
Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>