[MlMt] Auto-resize the top pane?

[Will Styler]

Hi there,

I'd just like to request that we be given the option to automatically 
resize the top pane (with the list of emails) based on the number of 
messages, perhaps implementing a "max messages shown" setting for when 
you're in a mailbox with many, many messages.

In short, it makes little sense to have 80% of the pane empty when 
you've only got one or two messages in your inbox, and makes similarly 
little sense to have to re-size that top pane to see new mail that comes 
in.  I've just noticed that I spend an inordinate amount of time 
dragging that little bar around.

Thanks!

Will