vim from ssh within tmux, doesn't honor xterm style keys.

tmux sends xterm style keys, whereas vim within a ssh does not have the
TMUX environment var set. So always assume that when the value of TERM
is screen*, expect these key sequences.
bashrc - Tell the fortune only once.
bashrc - Do not export unnecessary vars.

Use local variables whenever possible and unset variables which we do
not need any more.