Start to add error parameter to store response and router callbacks
Merge branch 'master' into node-style-callbacks
Formatting
Change router creation in test
Add test for errors in routers
Move router suite to own file to avoid side effects
Merge branch 'master' into node-style-callbacks
Don’t fail if there is no update handler (e.g. when querying)
Test that live routers only forward relevant errors
Change update callback signature to `name, error, value`
Remove unnecessary function
Update README with new signature
Merge branch 'node-style-callbacks'