Get emacs to respect control keys under tmux and putty

.tmux.conf

@@ -6,7 +6,7 @@ bind-key C-b last-window
 set -g base-index 1
 
 # Allows for faster key repetition
-set -s escape-time 0
+#set -s escape-time 0
 
 # Set status bar
 set -g status-bg black
@@ -23,6 +23,9 @@ setw -g aggressive-resize on
 # another TMUX session
 bind-key a send-prefix
 
+# Fix control keys through putty
+set -g xterm-keys on
+
 # Activity monitoring
 #setw -g monitor-activity on
 #set -g visual-activity on