app/src/main/java/org/sakaiproject/nakamura/app/NakamuraMain.java
static void error(String message, Throwable t) {
		log(System.err, "*ERROR*", message, t);
	}
static void error(String message, Throwable t) {
		log(System.err, "*ERROR*", message, t);
	}
emit an error message to standard err