Merge pull request lazychaser#370 from Ciaro/v5

V5 - fix support for Laravel 5.7 and 5.8 (fixes lazychaser#339, lazychaser#351, lazychaser#329, lazychaser#334, lazychaser#271, lazychaser#365)

Merge pull request lazychaser#354 from billriess/v4

Support Laravel 5.8

Merge pull request lazychaser#307 from bonzai/v4

Support Laravel 5.7

Update

Fixed lazychaser#252: nested eagers for ancestors and descendants are…

… now loaded

Bump minor version

lazychaser#217: parent_id, lft and rgt are reset when replicating a node

Fixed eager loading with scoping

Refactored ancestors and descendants relations

Update changelog