fixed tests + removed slots field
better error message when env is now owned by service
Add Service and Device Environment to REST API
Change resources link
Merge pull request #470 from quamilek/hotfix/api-environment-service

Add Service and Device Environment to REST API
Merge pull request #471 from xliiv/valid-env-field

Check if environment belongs to related.
Merge branch 'develop' into release/2.3.0

Conflicts:
	src/ralph_assets/tests/functional/tests_view.py
Merge branch 'release/2.3.0' into develop