Added check for username length for ps output

ps will print UIDs if a process' user's length is over 8.  Added check to use UID if length is over 8.
Merge pull request #5 from charlesdunbar/master

Resolution to Issue #2  Thanks! Sorry for the massive delay in getting this done. It's fundamentally unacceptable. Will repay in karma into the universe and hopefully it reaches you sir :)