How do you remove that obnoxious pseudo-invisible bottom panel in Gnome Shell in 11.10? Network Manager is especially annoying, as it will place a large "Network Disconnected!" tab that won't go away until I click on it, as if I wasn't already aware I no longer had an Internet connection.
In 10.04, it used to make a small growl modal in the upper right hand corner that gradually faded away. I really miss that. How do I get that back and permanently remove the bottom panel? I'm aware of various PPAs offering shell extensions, but I haven't been able to find one offering this explicit functionality.