4.0.0

What's Changed

• Fixed EventRepository trait issue with datetime string conversion + t… by @jpottier in #62
• refactor: Modernize codebase by @yohang in #71
• feat: Removed AbstractEvent and event Uid by @yohang in #72
• Chore: rename collection, aggregate and basic classes by @yohang in #73
• tests: add functional test by @yohang in #74
• tests: add functional test by @yohang in #75
• feat: Added some Symfony BrowserKit tests by @yohang in #76

Full Changelog: 3.0.0...4.0.0

Added google calendar event provider

• 177d721 Added Google calendar event provider
• d1aeaf1 Updated dependencies