Consider support Java style template arguments

[WonderCsabo]

The plugin currently forbids Java style (%1$s) string template arguments in the xml. Currently this plugin strictly forbids this style. However, the plugin still uses the same format as Android strings. It would be great if we could use 100% the same format as in Android, since Android support Java style arguments. If generateNamedArguments=false, then this plugin should allow Java style format args.