[Kst] update changes

[George Staikos]

In the view updates branch I have made two major changes:

1) Scalars now trigger updates the way all other view objects do.  It is 
possible (I haven't checked) that user-modified vector changes don't trigger 
updates still, but this is much less of a concern at the moment.  I think I 
was able to implement this without performance regressions and we will test 
it with some sessions this week to make sure that the labels all update 
properly.

2) The event monitor got some major changes:
   a) It no longer crashes or races when an event fires - things are done in 
the right thread.
   b) It can now execute KstScript when an event fires

  Hopefully we can test a session with this later this week too.

If there is no negative feedback by the end of this week and it works well for 
the users at IAS I will merge these into trunk.  I hope to make a full Kst 
release by the end of the week.  We need one due to NAD integration.  I 
discovered that NAD requires a minor change in KstDataSource, so we can't 
just package the datasource plugin.  Any other changes that need to go into 
the next release?  Any other feedback on updates?

-- 
George Staikos
KDE Developer				http://www.kde.org/
Staikos Computing Services Inc.		http://www.staikos.net/