Updated version of show_accounts that works on Gordon/Trestles and repor...

I put together a new version of show_accounts.pl that

(1) Extracts the host from the hostname command so that a single version can be used on Trestles and Gordon. With trivial modifications, can be used for Comet
(2) Displays information for users who are ineligible to run, either from being in the "amied" or "tspent" state. Output for project will be followed by "(ineligible)"