Laravel version update

Laravel version update

vendor/sebastian/comparator/ChangeLog.md

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+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## [2.1.3] - 2018-02-01
+
+### Changed
+
+* This component is now compatible with version 3 of `sebastian/diff`
+
+## [2.1.2] - 2018-01-12
+
+### Fixed
+
+* Fix comparison of DateTimeImmutable objects
+
+## [2.1.1] - 2017-12-22
+
+### Fixed
+
+* Fixed [phpunit/#2923](https://github.com/sebastianbergmann/phpunit/issues/2923): Unexpected failed date matching
+
+## [2.1.0] - 2017-11-03
+
+### Added
+
+* Added `SebastianBergmann\Comparator\Factory::reset()` to unregister all non-default comparators
+* Added support for `phpunit/phpunit-mock-objects` version `^5.0`
+
+[2.1.3]: https://github.com/sebastianbergmann/comparator/compare/2.1.2...2.1.3
+[2.1.2]: https://github.com/sebastianbergmann/comparator/compare/2.1.1...2.1.2
+[2.1.1]: https://github.com/sebastianbergmann/comparator/compare/2.1.0...2.1.1
+[2.1.0]: https://github.com/sebastianbergmann/comparator/compare/2.0.2...2.1.0