zsh updates

git-svn-id: http://photonzero.com/dotfiles/trunk@25 23f722f6-122a-0410-8cef-c75bd312dd78

.zshrc

@@ -31,8 +31,22 @@ ZLS_COLORS=$LS_COLORS
 	PR_STITLE=''
     fi
 
+    preexec () {
+          local CMD="${1/#sudo /#}"
+          local CMD="${CMD/#nano /}"
+          local CMD="${CMD/#ssh />}"
+          $SCREENME true || echo -ne "\ek${CMD%% *}\e\\"
+    }
+    precmd () {
+          $SCREENME true || echo -ne "\ekzsh\e\\"
+    }
+
 	PROMPT='$PR_STITLE$PR_LIGHT_BLUE($PR_LIGHT_YELLOW%D{%H:%M}|%!$PR_BLUE%)[%(!.$PR_RED.$PR_GREEN)%n@%m$PR_LIGHT_CYAN %~$PR_BLUE]$PR_NO_COLOUR%(!.#.$) '
 	#source .zshprompt
 
+source ~/.zsh_profile
 source ~/.bash_aliases
 source ~/.zshenv
+if [ -n "`which fortune`" ]; then
+    fortune
+fi