Release 1.6.0

Enhancements:

[Utilities] Implemented Arrays::contains method (issue #103).
[Utilities] Added Clock::isAfterOrEqualTo and Clock::isBeforeOrEqualTo.
[Utilities] Added multi-byte safe Strings::uppercaseFirst.
[Utilities] Added pseudo localization support.
[MVC] Layout has now access to view variables.
[ORM] Added exception handling for invalid query.
[Utilities] Added Functions::endsWith method.
[Tests] Added verifier - Mock::receivedTimes (issue #153).
[Utilities] Added method Strings::removeAccent.
[Tests] Handle parameters in ControllerTestCase::get.
[ORM] Added BatchInserter.
[Utilities] Added Strings::substringAfter method.
[Utilities] Added FluentArray::sort method.
[Utilities] Added FluentArray::filterByAllowedKeys method.
[DI] Added dependency injection support (IoC container).
[Tests] Added chain to Mock::when (issue #209).
[ORM] Added Restrictions:regex method (issue #213).
[Core] ControllerFactory use Injector (issue #223).
[Utilities] Added FluentArray::groupBy method.
[DI] Injector can inject itself.
[DI] Injector config can be modified after injector initialization.
[Utilities] Added support for ArrayAssert::extract method (issue #231).
[Utilities] Added methods Functions::inArray and Functions::notInArray.
[Utilities] Refactored Booleans.
[Utilities] Added Arrays::shuffle.
[Core] Added Controller::getRequestHeaders.
[Core] Added options to PDO.

Bug fixes:

[Utilities] Fixed ArrayAssert, so that it does some type checking based on Arrays::contains behavior (issue #192).
[MVC] Fixed major performance issue with routes validation.
[ORM] Fixed inserting records with no values (issue #216).
[Tests] Support for controller tests without configured database.
[Core] Fixed json decode to make it compatible with PHP7 (issue #191).
[ORM] Fixed method Model::nullifyIfEmpty.
[Core] Fixed ForbiddenException - takes errors.
[Tools] Fixed generating models (issue #214).
[Core] Bootstrap::addConfig loads everything multiple times on consecutive executions (issue #218).
[Tools] Fixed generating @property (issue #168).
[ORM] Handle in batch inserter tables without primary key.
[Core] Fixed exception when config was not added to Bootstrap.
[Utilities] Fixed SkippingIterator so that map function is not applied on skipped elements.
[ORM] Fixed BatchInsert with fetched relations (issue #230).
[Utilities] Fixed cache for nulls.
[Core] Fixed render 404 on RouterException.
[Utilities] Fixed null handling for Optional.
[Utilities] Fixed String::contains for multi-byte.
[Utilities] Added limit (10) to number of requests being kept in Stats (issue #217).
[Utilities] Fixed comparing in Functions::notEqual and Functions::equal with type check.
[Utilities] Fixed reset JSON on error.