Managed to self-destruct pager.

Issues:
- A page-faulting thread suspends if receives -1 from pager page fault ipc.
  This is fine if pager is about to delete the thread, but it is not if
  it is a buggy pager.
- Need to find a way to completely get rid of suspended pager.
- A method of deleting suspended tasks could remedy both cases above.

conts/posix/mm0/main.c

@@ -187,10 +187,17 @@ void handle_requests(void)
 
 void main(void)
 {
+	struct task_ids ids;
+
+	l4_getid(&ids);
+
 	printf("\n%s: Started with thread id %d\n", __TASKNAME__, self_tid());
 
 	init();
 
+	printf("\n%s: Destroying self (%d), along with any tasks.\n", __TASKNAME__, self_tid());
+	l4_thread_control(THREAD_DESTROY, &ids);
+
 	printf("%s: Memory/Process manager initialized. Listening requests.\n", __TASKNAME__);
 	while (1) {
 		handle_requests();