Add UTF-8 conversion command to OMEdit

[Martin Sjölund]

1. Select directory
2. Choose source encoding
3. OMEdit scans for all .mo-files and converts them to UTF-8

QTextStream in(&inFile);
in.setCodec("Windows-1252");
// ...
file.open(QIODevice::WriteOnly | QIODevice::Text);
QTextStream out(&file);
out.setCodec("UTF-8");
out.setGenerateByteOrderMark(false);
out << str;
file.close();

I suggest making it an option when opening files to convert them. And making a drop-down box using QTextCodec::availableCodecs(), instead of making the user input the encoding himself.

[Adeel Asghar]

Added in r16304.