Support Symfony 5

• Drops support for Symfony <3.4, <4.3.
• Drops support for PHP 7.1

Address CVE-2019-10909

v3.0.3

Address CVE-2019-10909 (#30)

Fix regression related to Symfony 4.2 support

• Fix regression introduced with Symfony 4.2 support
• Update Travis matrix to run only for maintained Symfony and PHP versions
• Update composer dev dependencies

Resolve Symfony 4.2 and PHPUnit deprecations

• Fix Symfony 4.2 deprecations for TreeBuilder
• Fix PHPUnit deprecations for the configuration file
• Replace dev dependency of satooshi/php-coveralls with php-coveralls/php-coveralls

Split framework-agnostic logic in its own project

• Min PHP version required bumped to 7.1
• Non-symfony related logic moved to martin-georgiev/social-post (check UPGRADE-GUIDE.md for details)

Enable Symfony 4 support

Merge pull request #10 from martin-georgiev/feature/symfony-4-ready

Make the package Symfony 4 ready

LinkedIn support

Includes:

• Support for publishing on LinkedIn
• Simplified SocialNetworkPublisher interface (includes new Message class)
• Better runtime control (ability to publish only to a sublist of social networks) (RFC in #4)
• New exceptions
• Improved unit tests coverage

Facebook and Twitter support

Support for Facebook and Twitter