These are just the doc strings I created as I was spelunking
through to see how Sugar manages launching applications. The
resulting auto-documentation is neither polished or finished,
but it should help people reading the code somewhat.
There are a few minor code cleanups:
* activityhandle (replacing C idiom for initialisation with
a Python one)
* bundle registry (using a parameterised directory name so
that it shows up in the documentation)
* validate_activity_id function, use isinstance( item, (str,unicode))
for the query, rather than two separate checks with isinstance
The ActivityFactory create() method now returns a handler GObject,
which callers may attach signals to to receive success and error
signals from the result of the activity launch request.
HomeModel now uses the activity ID to track activities, and creates
the HomeActivity object when the activity is launched, not when
its window appears.
