[rfc][icedtea-web] Console Output Encoding Fix

[Jiri Vanek]

I'm happy with   this patch with one execption.
I would actually like the part

catch(unsupportedencodinge){
tostring(witoutEncoding)
}

to return. BUt log the exception :)

Also this should be sanitized, that the exception is thrown only once (all follwing toString will 
use no-encoding)

Pleasestick the new path togeher with tests. With some luck next iteration will be last (Unless 
jacob/Omair complains to strongly:)

J.