[Mono-list] Exception ignored in ConfigurationData

[Marco Canini]

I ran in troubles with app config file and spent a lot of time just 
because an exception is ignored into ConfigurationData.
In file ConfigurationSettings.cs, almost at line 160, there's a generic 
catch clause followed by return false.
I don't why it's so, but IMHO the exception should not be ignored here: 
as i said i lost much time figuring out why my app config file wasn't 
loaded, and in the end i had to modify the file and recompile system.dll
So if there's no good motivation to ignore exceptions there pls remove 
the catch clause.

MC