v0.3.0

Feature

[618ae73] Reduce the size of the generated archive by using gitattributes (@ogizanagi)
[e7afccd] [BC BREAK] Make enum construct final and suggest to make enum classes final (@ogizanagi)
[7f7ab9e] [BC BREAK] Rename EnumInterface::create to get (@ogizanagi)
[160cf41] Lower requirements for provided integrations (allow sf 2.8) (@ogizanagi)

Bug fix

[d34cec0] Fix issues spotted by Scrutinizer (@ogizanagi)
[a452534] Fix some data transformers exceptions issues (@ogizanagi)

Documentation

[7d8dc2a] How to compare enums (@ogizanagi)
[631b6af] Mention valid and invalid use cases for enumerations (@ogizanagi)
[792bfef, 975799e] Improve documentation (@xavier-rdo, @chalasr)