Converted SLF4J 'trace' to 'debug' and changed build date/time format.
Handled missing file for login.
Removed long[] admin and made inactivity checker an inner class.
The admin array has no use in the GUI client, and moving the inactivity checker means we don't need to put a reference to the steamFriends object from the client in it.
Merge branch 'master' of https://github.com/nosoop/DistributableMarketeeringTool.git