twuni/evy — Issue #3: Document the "@@" event.
Author: twuni
Created: 2012-03-05 09:13:42+00:00
State: open

Consider finding a more suitable name for this event, too.

The difference between `@` and `@@` is as follows:

* `@` is a one-time subscription. Once it has executed once, it is not executed again.
* `@@` is a persistent subscription. It can be executed any number of times.