2.1.0

Possible breaking changes

• Convert First transformation into operation. (c7ac8b3)
• Convert Last transformation into operation. (a8cb98f)

Those operation now returns a collection instead of a single item.

New

• Convert First transformation into operation. (c7ac8b3)
• Convert Last transformation into operation. (a8cb98f)
• Add Head operation. (126bf8a)
• Delete obsolete Walk operation in favor of Map operation. (a8dac33)

Improvements

• Update Filter operation. (5a7e41d)
• Update Tail operation. (1d15657)
• Update Filter operation. (f81494a)
• Update Map operation. (8b1dd27)
• Update Split operation. (84e6381)
• Update Implode transformation. (1c9e929)
• Update FoldLeft/FoldRight transformations. (cece391)

Miscellaneous

• Update composer.json. (def5f26)
• Update README. (a05ec2f)
• Add new example. (d1be59e)
• Update typing information. (e716b85)
• Update typing information. (81b7a6f)
• Add missing return statements. (119cdfe)