Fix reindexing for polymorphic relations
Fix for non existent relations
Bugfix, updated tests and fixed some formatting errors
Merge branch 'ferrydg-non-existent-relations-fix' into develop
Merge branch 'develop' of https://github.com/myselfhimself/larasearch into myselfhimself-develop

Conflicts:
	src/Iverberk/Larasearch/Observer.php
Added test coverage and small changes
Merge branch 'myselfhimself-develop' into develop