v0.4

This release adds automatic extra padding calculation (Tiler.calculate_padding()) and unmerging (merger.merge(extra_padding=...)), as well as merging with weights normalization (merger(normalize_by_weights=True), True by default).

There were API changes, so please take a look at the documentation is something doesn't work after updating.

Thanks @renerichter for contributions!

Full Changelog: v0.3.1...v0.4