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While the newly introduced watcher solves the issue when reloading
the dashboard on the ShowManager page, now the show info does not
get loaded when the user logs in on the home pages, waits a few seconds
(in which time all the auth info is already loaded) and then goes to
the ShowManager. In that case the watcher will never trigger after
the creation of the ShowManager.

Now the show info gets loaded right away if the auth info for the
steeringUser is already set.

This is for now hardcoded to 10, but in Aura 1.1 or 1.2 this
should become configurable by the dashboard user.

fixes #36