Updated readme file

README

@@ -1,17 +1,23 @@
-To use this program, assert it is located in your $PATH. Then, simply run it
-like any other program. You will be presented with a dialog asking you whether
-you want to logout, reboot or shutdown. Reboot and shutdown should work out of
-the box (if you have permission - see below); logout will only work without
-further configuration if you are using Openbox.
+Requirements:
+* Python 2.4+
+* PyGTK 2.6+
+* gksu (not needed if you use the consolekit patch)
 
-To use logout from different window managers, export the environment variable
-LOGOUT_COMMAND, setting it to the command needed to perform a logout from your
-window manager. Alternatively, you can leave LOGOUT_COMMAND unset and specify
-the command as an argument to pygtk-shutdown. In this case, there is no
-need to escape the command, as it will be taken as a literal string.
+Optional Requirements:
+* consolekit (if you want to use consolekit rather than /sbin/shutdown and gksudo)
+* pm-utils (if you want suspend and hibernate support but no consolekit)
+* upower (if you want suspend and hibernate support with consolekit)
 
-There are included patches for support for consolekit, consolekit+upower, or pm-utils
+To install this program, copy it to a location in the system $PATH, or store
+it elsewhere and create a symbolic link to it in $PATH. The program itself
+does not require any more installation.
 
-Notice: in order to use pygtk-shutdown, the user you are calling it as
-must have sudo permission to execute /sbin/shutdown. See INSTALL and
-sudoers(5) for more information.
+You will need to add the users you wish to grant permission to use this
+program to /etc/sudoers; see sudoers(5). It is recommended you give your user
+permission to use the /sbin/shutdown program without a password, though not
+necessary (but the user will be prompted for a password). In any case, your
+users need permission to execute /sbin/shutdown through sudo, with or without
+a password.
+
+To apply one of the patches, use the patch utility:
+patch pygtk-shutdown PATCHNAME.patch