enhancement request

[Ben Nachtrieb]

I'd like to suggest an enhancement for future pgAdmin releases: Allow use of 
the Query History tab while query is running. Currently if a query is running 
in a Query tool window, the entire thing is locked until the query completes. 
For long queries it would be nice to have access to the Query History tab while 
the a query is running. The currently executing query could be listed as 
"executing" or something like that.
Thanks!
Ben