Consolidate edit item logic

[fredkingham]

sorry this is a bit massive,

wins

• we now don't rely on $scope.episode to do any of our edit item logic
• we consolidate the logic between episode list and episode detail
• we cache user profile and options

you might not like

• we bring in the cached profile straight to the record editor, which seemed like a nice decoupling but means we need to add a profile loader line in every test that uses episode
• we remove the delete option in episode detail and you now delete in the modal which I think is a bit cleaner (if we like this we can remove the deletion code from the record editor)

[landscape-bot]

Code quality remained the same when pulling ef17fa1 on openhealthcare:consolidate-edit-item-logic into 1403e1b on openhealthcare:v0.6.0.