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
Add documentation
Clean imports in urls file
Review fixes
Flake8
Review changes
Merge branch 'develop' of https://github.com/allegro/ralph_assets into micro-workflow
Change migration number
Merge pull request #154 from quamilek/micro-workflow

Very simple transitions handler in Assets