Add micro-workflow models
Merge branch 'develop' of https://github.com/allegro/ralph_assets into micro-workflow
from_status is not required in Transition model
Add transition buttons and handling js
Transition dispatcher and views
Major changes in transition views, validations
Transition history on asset view
Cleaning sidebar menu
Merge branch 'develop' of https://github.com/allegro/ralph_assets into micro-workflow

Conflicts:
	src/ralph_assets/media/assets/js/base.js
	src/ralph_assets/urls.py
	src/ralph_assets/views.py
Update migration file
remove commited conflict
rm *required* for fields: status,purpose,source,price,'support period in months'
Merge branch 'develop' into fields-requirements
added migration file
fixed tests
code fixes according to flake8
Add documentation
Clean imports in urls file
Review fixes
Flake8