Fix parsing of double line /list command output

The ?who and ?last commands should now work correctly again with
the new output format that splits the output of the /list server
command into two separate lines. The actual player list is now on
the 2nd line of console output.
Fixed ?time command and re-added weather reports

The ?time command needs to run "save-all" first so that level.dat
gets updated with the current world time and weather status. This
does cause the server to print a "Saved the world" message to
all logged in players even if the ?time came from IRC.
Merge pull request #15 from thvortex/master

Fixed ?time, ?who, and ?last