Fix deprecated errors in tests (#575)

* Fix deprecated errors in tests

* Safely count all possible types

* Support iterable type fully in newer pagerfanta versions

* Use psalm 4.30

add test case for accessing current scope before its value has been s…

…et (#552)

Add stale bot (#545)

Merge pull request #502 from thephpleague/hotfix/tests-for-minimum-ve…

…rsions

Fix tests for PHP 5.4 and 5.5

Merge pull request #500 from thephpleague/fix/update-travis

update travis to allow failures on 54 and 55

Merge pull request #490 from onursimsek/feature/modifier-with-sub-rel…

…ation

Allow sub relations with modifier

Merge pull request #481 from ramsey/phpunit-upgrade

Allow use of newer PHPUnit on newer versions of PHP

Merge pull request #306 from bburnichon/feature/scope-factory

Introduce Scope Factory

Merge pull request #362 from Farrser/doctrine-paginator-adapter

Add DoctrinePaginatorAdapter to interface with Doctrine pagination

Merge pull request #285 from vanbrabantf/master

Fixed an inconsistent method name