Merge remote-tracking branch 'origin/0.x' into master * origin/0.x: As create_object handler is copied from the parent class, we should ignore situations when we are trying to extend a class that already has necessary create_object handler installed by Z-engine. Only internal classes should be ignored as we can't allocate memory for them and to perform initialization

As create_object handler is copied from the parent class, we should i… …gnore situations when we are trying to extend a class that already has necessary create_object handler installed by Z-engine. Only internal classes should be ignored as we can't allocate memory for them and to perform initialization

Migrated PHPUnit configuration to new format, enabled coverage mode 

Add initial implementation of ReflectionProperty class 

Merge pull request #34 from lisachenko/feature/additional-property-hooks [Feature] Add additional has_property, unset_property hooks

Extract NodeInterface->removeChild() method, adjust typehints to Node… …Interface where applicable

Merge pull request #20 from lisachenko/feature/user-class-handlers [Feature] Implement userland object handlers

Fix invalid call to FFI::free