Merge branch 'release/3.0.2.2' into develop
Added Coveralls #4507
Merge pull request #9 from aroraumang/feature/task-4507

Added Coveralls #4507
Fixed coveralls badge #4507
Merge pull request #10 from aroraumang/feature/task-4507

Fixed coveralls badge #4507
Added 'add_remove' option to product.tree_node.children field #4655
Merge pull request #11 from aroraumang/feature/task-4655

Added 'add_remove' option to product.tree_node.children field #4655
Add tree as a catalog root option #4704
Release version 3.0.3.0
Merge branch 'release/3.0.3.0'