-Fix: Money vars are sent as uint64, but in fact are int64.
-Change: don't show disconnect messages twice.

-Add: minor more debugging messages.
-Add: show when a new company is made.
-Fix: the command history should now work.
-Add: more short-hand functions: economy, vehicles, stations, and one to show all: full_stats
-Change: center all table headers for the short stats.