Go back to the FIFO scheduler for now, as we don't have time to shake out the RR scheduler changeover just yet.

Make the "default" scheduler a centralized definition so that changes are easier in future.

apps/sdlog/sdlog.c

@@ -109,7 +109,7 @@ usage(const char *reason)
  * Makefile does only apply to this management task.
  * 
  * The actual stack size should be set in the call
- * to task_create().
+ * to task_spawn().
  */
 int sdlog_main(int argc, char *argv[])
 {
@@ -126,7 +126,7 @@ int sdlog_main(int argc, char *argv[])
 
 		thread_should_exit = false;
 		deamon_task = task_spawn("sdlog",
-					 SCHED_RR,
+					 SCHED_DEFAULT,
 					 SCHED_PRIORITY_DEFAULT - 30,
 					 4096,
 					 sdlog_thread_main,