refactored tests
last hostname stored in another model
last hostname stored in another model
refactored tests
after review
added migration
removed old migration
Merge branch 'develop' into 330-last-hostname-in-apart-table-2

Conflicts:
	src/ralph_assets/tests/functional/tests_view.py
Merge branch 'develop' into 330-last-hostname-in-apart-table-2
Merge pull request #349 from ar4s/330-last-hostname-in-apart-table-2

Last hostname in apart table
[WIP] change hostname transition
hostname get template vars
Merge branch 'develop' of github.com:allegro/ralph_assets into feature/hostname-transition

Conflicts:
	src/ralph_assets/models_assets.py
Update settings, fix country_id error, add migrations
Merge pull request #359 from ar4s/refactor-generate-hostname

Refactor generate_hostname
Merge branch 'develop' of github.com:allegro/ralph_assets into feature/hostname-transition

Conflicts:
	src/ralph_assets/models_assets.py
Fix can_generate_hostname
Add test for change_hostname transition
Fix flake8 errors
Merge branch 'develop' of https://github.com/allegro/ralph_assets into post-hook