Refresh objects on Click

Hi Dave,

I'm sending the patch on the Refresh object on Click[1].

I put the three options. "None", "Refresh object on click" and "Refresh
object and children on click"

You can review it?

PS: Forgive me, of a mistake in my English.

Thank You.

[1] = http://archives.postgresql.org/pgadmin-hackers/2011-06/msg00039.php