0.4.1 - Hierarchical graphs and flexible remappers

What's Changed

• Feature/mask NaNs in training loss function by @sahahner in #56
• Feature/hierarchical graphs by @icedoom888 in #37
• Feature/improved imputer by @icedoom888 in #89
• Feature/reduce-decoder-mem-usage by @cathalobrien in #84
• add support for storing numpy arrays in the checkpoints by @b8raoult in #97
• docs: update docs for release 0.4.1 by @JPXKQX in #99
• Feature/flexible remappers by @OpheliaMiralles in #88

New Contributors

• @icedoom888 made their first contribution in #37
• @cathalobrien made their first contribution in #84
• @OpheliaMiralles made their first contribution in #88

Full Changelog: 0.4.0...0.4.1