New
- support `loop` in bundle config (50)
- respect `.env` for cli `dagian` and `dagian-draw-dag` (51)
- support `create_dataset_context` in `H5pyDataHandler` (55)
- support `append_context` and `data_columns` in `PandasHDFDataHandler` (56)
- upgrade `h5sparse` and support bundling `h5sparse.Dataset` in concat mode (57)
Fix
- fix default argument when bundling (58)