WIP todo_react_demo
Fix bower file
Add support for CORS
Demo works better now
Clean the code a little
Fix tests related to new publish signature
Move Memory{Medium,Collection,Ressource} to a now module
Merge branch 'todo_react_demo'

Conflicts:
	tests/backend/__init__.py
	tests/test_ressources.py
	tests/utils.py
Some refactoring
The big renaming, ressource -> resource