0.0.3 (2016-01-05)

Cosmetic Change: Rename class name
Cosmetic Change: Rename variables
Cosmetic Change: Change indents

0.0.2 (2015-12-09)

Fix a bug: when the distinct key includes null, this plugin did not guarantee the distinctness.
Add debug log: the filtered key like Duplicated key: [value1, value2, value3]

0.0.1 (2015-12-08)

first version