V0.8.4

• Fix value printing of IntervalSet when rows are collapsed
• Backward compatibility fix for loading npz files with TsGroup
• Fix indexing of IntervalSet to be able to use -1
• Add column names for compute_wavelet_transform

What's Changed

• add column names for compute_wavelet_transform by @sjvenditto in #405
• Backward compatibility fix for loading npz files with TsGroup by @gviejo in #410
• Fix value printing of IntervalSet when rows are collapsed by @sjvenditto in #411
• fix indexing of IntervalSet to be able to use -1 by @sjvenditto in #409
• Bumping 0.8.4 by @gviejo in #412
• Update setup.py by @gviejo in #413

Full Changelog: v0.8.3...v0.8.4