If a quickload gets a warning and is corrected, IGB will not load the corrected folder

Related bug:
1. Run IGB
2. Add a simple QuickLoad with contents.txt.
It will through some errors and new server will not show up in the server list.
Run IGB again, open server configuration panel and the previous added server will be in the list.

We need different condition to test whether the server has been loaded.

Instead of just test "server == null"

We probably need a reload function for server configuration panel. When IGB is running and user has changed something to the server, we should provide a reload button to update server.

Fixed in trunk version 10569.

Need to click refresh button to update the server.

To test this, download the attached quickload folder to desk top. Move the 'contents.txt' file out of the quickload folder. Add the folder (via Configure, >Add..., [any name], quickload, and >... button to find the folder on desktop). You should get a warning that the contents folder is missing. The quickload will still be put into the server list, but grayed out and unusable.

Return the contents file to the main folder, select the quickload from the server list, and hit the swirly 'refresh' icon next to the server name. The server should now highlight properly, should be selectable and be usable.

Passed Windows v10705

Passed on 7.0.0 (11945) Mac.

There is no longer a warning when something is wrong with the quickload! There really needs to be...

test: move 'contents' to the wrong place, add QL. No warning, it just adds in. However, (obviously) nothing in the QL can be accessed and there is no explaination.

Fixed in 13859