v0.4.0

Changed

• ls defaults to current working directory if no container path provided.

0.3.9

[0.3.9] - 2020-11-10

Added

• New command: slice-img exports an image from a 2D slice. Unlike export
  this supports N-dimensional volumes and arbitrary slicing dimensions.
• Commands which take slabbing options now accept ranges of slab coordinates
  via --slab-min and --slab-max.