687a87d3d0
For both of these, because of optimizations a few patches ago, we ended up relying on hash table ordering which caused instability in the application well among other things. Define an ordering for both. The favorites is just the order of the GConf keys, and new items get appended. In the future we should allow insertion at any point which the grid could use. For running applications order, define a new "initially_seen_sequence" transient variable which is just an monotonically incrementing integer assigned to an application for the first time we saw it running in this session. When an application is closed, it's reset.
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