Release 0.2.0

This release introduces the following changes and features:

• Repository index loader for different data sources. It is now possible to load the repository index from an Url, a locak file, or directly from a given dictionary.
• Support loading index files in Json or YAML format.
• Add package information and timestamp for downloaded datasets.
• Add optional value transformers to distinct() and mapping() methods of the DatasetHandle (#4)

Release 0.1.1

This release introduces the following change:

• Use appdirs.user_cache_dir as parent directory for the default target directory for downloaded files (#5).

Release 0.1.0

Initial release.