[g-a-devel]Children-changed for Desktops

[Marc Mulcahy <marc mulcahy sun com>]

HI All,

The commit I just made to at-spi to add "children-changed" event support to 
desktop objects is bogus.  I thought that simply emitting a 
"children-changed" on the backing AtkObject for the desktop was right, but 
this is broken since it only works if the ATK bridge is loaded.  I think 
the right approach is the one I started with but scrapped because I thought 
it was overkill.  add two signals to SpiDesktop "application-added" and 
"application-removed", and make a signal listener in the registry which 
listens to these two signals and emits appropriate events.

Sorry for the breakage-- I'll fix it ASAP.

Marc