Reader now warns about invalid UTF-8 files;

Fixed possible hang when reading multiline strings with incorrect indentation;
Warnings from reading are shown also in NewSetWindow;
Script parse errors get reported with the correct line number;

Added support for showing multiple choice fields as a single image;
Added 'line_below' to ChoiceField::Choice, for putting a line below menu items.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@420 0fc631ac-6414-0410-93d0-97cfa31319b6

src/script/scriptable.hpp

@@ -147,6 +147,7 @@ void Reader::handle(Scriptable<T>& s) {
 	} else if (s.script.unparsed.find_first_of('{') != String::npos) {
 		s.script.parse(*this, true);
 	} else {
+		unhandle();
 		handle(s.value);
 	}
 }