Update tmux config to work more like my screen config

Change status format
Don't update terminal window titles (X11 term app, not tmux window)
Add load averages to status

.tmux.conf

@@ -1,42 +1,106 @@
-# change command prefix to control-a (like screen)
-unbind-key C-b
-set-option -g prefix C-a
+unbind C-b
+set -g prefix ^A
+bind a send-prefix
 
-# binds for screen-like behavior
-bind-key C-a last-window
-bind-key p previous-window
-bind-key C-p previous-window
-bind-key n next-window
-bind-key C-n next-window
-bind-key k confirm-before kill-window
-bind-key Escape copy-mode
-bind-key A command-prompt "rename-window %%"
-bind-key a send-prefix # to allow ^a to get to the beginning of the line in bash
+# Bind appropriate commands similar to screen.
+# lockscreen ^X x
+unbind ^X
+bind ^X lock-server
+unbind x
+bind x lock-server
 
-# terminal settings
-set-option -g history-limit 4096
-set-window-option -g mode-mouse on
-set-window-option -g mode-keys vi
+# screen ^C c
+unbind ^C
+bind ^C new-window
+unbind c
+bind c new-window
 
-# dynamic window titles
-set-option -g set-titles on
-set-option -g set-titles-string '#S:#I.#P #W' # window number,program name,active (or not)
-set-window-option -g automatic-rename on # auto name
+# detach ^D d
+unbind ^D
+bind ^D detach
+
+# displays *
+unbind *
+bind * list-clients
+
+# next ^@ ^N sp n
+unbind ^@
+bind ^@ next-window
+unbind ^N
+bind ^N next-window
+unbind " "
+bind " " next-window
+unbind n
+bind n next-window
+
+# title A
+unbind A
+bind A command-prompt "rename-window %%"
+
+# other ^A
+unbind ^A
+bind ^A last-window
+
+# prev ^H ^P p ^?
+unbind ^H
+bind ^H previous-window
+unbind ^P
+bind ^P previous-window
+unbind p
+bind p previous-window
+unbind BSpace
+bind BSpace previous-window
+
+# windows ^W w
+unbind ^W
+bind ^W list-windows
+unbind w
+bind w list-windows
+
+# kill K k
+unbind K
+bind K confirm-before "kill-window"
+unbind k
+bind k confirm-before "kill-window"
+
+# redisplay ^L l
+unbind ^L
+bind ^L refresh-client
+unbind l
+bind l refresh-client
+
+# " windowlist -b
+unbind '"'
+bind '"' choose-window
+
+# Rather than constraining window size to the maximum size of any client
+# connected to the *session*, constrain window size to the maximum size
+# of any client connected to *that window*. Much more reasonable.
+set-window-option -g aggressive-resize on
+
+# show the bell in all windows
+set-option -g bell-action any
+set-option -g visual-bell on
 
 # status bar
-set-option -g status-utf8 on
 set-option -g status-justify left
 set-option -g status-bg blue
 set-option -g status-fg white
-set-option -g status-interval 5
-set-option -g status-left '#[default]'
-set-option -g status-right '#[fg=cyan]#(whoami)@#H  #[fg=red]#(cut -d " " -f 1-3 /proc/loadavg)  #[fg=yellow]%m/%d %R'
+set-option -g status-left ''
+set-option -g status-right '#[fg=colour47]#H #[fg=red]#(cut -d " " -f 1-3 /proc/loadavg) #[fg=colour227]%Y-%m-%d %H:%M#[default]'
 
-# window settings
-set-option -g visual-activity on
-set-window-option -g monitor-activity on
-set-window-option -g window-status-current-bg red
+# terminal messages, like "bell in terminal 1"
+set-option -g message-fg black
+set-option -g message-bg white
+
+# Highlight active window
 set-window-option -g window-status-current-fg white
+set-window-option -g window-status-current-bg red
+set-window-option -g window-status-bell-attr default
+set-window-option -g window-status-bell-fg yellow
 
-# clock
-set-window-option -g clock-mode-style 24
+# scrollback buffer
+set-option -g history-limit 4096
+
+# hijack the TERM variable for shells inside tmux
+set-option -g default-terminal "screen-256color"