Move startup/shutdown command .txt files to .txt.example files to avoid clobbering on updates.

Thanks to Whitestar in http://opensimulator.org/mantis/view.php?id=5938 for pointing out this problem.

bin/shutdown_commands.txt

@@ -1,3 +0,0 @@
-; You can place simulator console commands here to execute when the simulator is shut down
-; e.g. show stats
-; Lines starting with ; are comments

bin/shutdown_commands.txt.example

@@ -0,0 +1,3 @@
+; Copy this file to shutdown_commands.txt to execute region console commands when the simulator is asked to shut down
+; e.g. show stats
+; Lines that start with ; are comments

bin/startup_commands.txt

@@ -1,3 +0,0 @@
-; You can place region console commands here to execute once the simulator has finished starting up 
-; e.g. show stats
-; Lines start with ; are comments.

bin/startup_commands.txt.example

@@ -0,0 +1,3 @@
+; Copy this file to startup_commands.txt to run region console commands once the simulator has finished starting up
+; e.g. show stats
+; Lines that start with ; are comments.