hoodie.account.fetch(), .update(), .profile.fetch() and .profile.update() should fail with UnauthenticatedError if session is invalid, but currently fails with "Not FoundError"

[gr2m]

To simulate an unauthenticated state, replace session.id in localStorage.account with a bogus value, then reload the page and do account.fetch()

---

• [x] claim this issue (@realtin)
• [x] start a PR (#62)
• [x] add unit and integration tests for account.fetch(). In the latter, make sure that an "unauthenticate" event gets triggered
• [x] fix account.fetch()
• [x] repeat steps for account.update, account.profile.fetch and account.profile.update
• [x] review & merge
• [x] update https://github.com/gr2m/milestones/issues/88

[Realtin]

I'll try this one!

[gr2m]

this is on hold as it will probably be fixed by https://github.com/hoodiehq/hoodie-client-account/issues/64