Move the unix scripts for the tutorial sample into a subdirectory

samples/tutorial/readme.txt

@@ -1,6 +1,10 @@
-Run the application directly from the checked out source tree, using the command
+This is the most basic sample web application for Spring Security.
 
-mvn jetty:run
+If you have gradle installed, you can run the application directly from the checked out source tree, using the command
+
+gradle jettyRun
 
 This will start jetty on port 8080, with SSL support on port 8443.
 
+The 'scripts' directory contains simple Unix command-line scripts for exercising the application and displaying the results.
+