Add [Output.writeUnicode(String value)]

[GoogleCodeExporter]

[Output.writeUnicode] must be exposed the same way you exposed 
[Output.writeAscii]

Very often user knows that it's using Unicode chars in strings.
so the following code in [Ouput.writeString] is small but overkill:

// Detect ASCII.
boolean ascii = false;
if (charCount > 1 && charCount < 64) {
    ascii = true;
    for (int i = 0; i < charCount; i++) {
        int c = value.charAt(i);
        if (c > 127) {
            ascii = false;
            break;
        }
    }
}

Original issue reported on code.google.com by denysenk...@gmail.com on 23 Aug 2012 at 5:55

[GoogleCodeExporter]

It can be done in one line using current code:

public void writeUnicode (String value) throws KryoException {
    writeString((CharSequence)value);
}

Original comment by denysenk...@gmail.com on 23 Aug 2012 at 6:06