+ * TestJoin is a simple application used to test the basic functionality of
+ * the join() system call for waiting on a set of threads in a TOSThreads
+ * based application.
+ *
+ * Upon a successful burn, you should first see LED0 flash twice with a period of
+ * 1s and LED1 flash 4 times with a period of 1s. After these are done,
+ * LED2 should come on and stay on.
+ *