InvocableLogger - Apex class for logging messages in Flows

/**
 * @description Simple invocable class (can be called via process or flow).  For logging a message or messages to the debug logs.
 * @author James Loghry
 * @date 8/1/2016
 */
public class InvocableLogger {
	@InvocableMethod
    public static void log(List<String> messages){
        if(messages != null){
            for(String message : messages){
            	System.debug(message);
            }
        }
    }
}