Killed the refresh timer in who.cpp

Killed the refresh timer in who.cpp
Updated the who function so that refreshes are no longer automated, but
WILL work when clicking on 'refresh' on the who window.
who_refresh had a timer which wasn't stoppable, which would, when
connecting to another bbs, continue running and then core dump.
Removed the read new button from roomview.  It wasn't necessary as new
messages dump automatically.