Fixes a bug when viewing an updating twkn while logged in.

Fixes issue #4

Breaks the specs.

This fixes #11.

This adds a favorite notification.

Kind of wonky. Would be better if we used the AS endpoints.

This now uses nearly only mutation, to take advantage
of vue's mutation tracking.

They should be in allStatuses to keep only one reference, but they
should not get into the timeline, or it will mess up old status
fetching, because they have a very low id.

Fixes problems with liking + likes count.