3.0.1

Fixed bugs:

• EventDispatcher - use case sensitive event names; #695 (gam6itko)

Closed issues:

• Symfony 4.2 deprecation: A tree builder without a root node is deprecated #707
• DateTime / DateTime Deserialize without timezone #706
• Argument 1 passed to JMS\Serializer\Metadata\Driver\AbstractDoctrineTypeDriver::normalizeFieldType() must be of the type string, null given #701

Merged pull requests:

• fix compatibility with Symfony Config 4.2 #705 (xabbuh)
• Update services.xml #702 (enumag)
• Xml keys were improperly named in config docs #696 (curiosity26)
• Update .travis.yml #693 (andreybolonin)