Made a zenity module based of the update-runescape-client script fork from Fallen Unia
This module should make it possible for other parts of the client to easily use zenity too.
Remove the old garbage collection parameters from the fallback parameters.
added them in a comment below the fallback parameters incase someone needs them
Updated the update script to support zenity if it is installed.
otherwise it will fall back to xterm
removed launchbeta from runescape.conf
also made the exec command for update runescape client, launch the script instead of forcing it to xterm
made the shortcut for update-runescape-client launch the script directly instead of forcing it to run in xterm.
also added shortcut to rsu-settings