add c089 theme

based on modified prose, see url on top, modified to include the history number
in the prompt

themes/c089.zsh-theme

@@ -0,0 +1,21 @@
+# from http://blog.munge.net/2011/10/fun-with-zsh-themes/
+function virtualenv_info {
+    [ $VIRTUAL_ENV ] && echo '('`basename $VIRTUAL_ENV`') '
+}
+
+function vcprompt_info {
+    vcprompt --format-git "on ± %{$fg[magenta]%}%b%{$reset_color%}%{$fg[green]%}%u%m%a%{$reset_color%}" \
+             --format-hg  "on ☿ %{$fg[magenta]%}%b%{$reset_color%}%{$fg[green]%}%u%m%{$reset_color%}" \
+             --format    "on %s %{$fg[magenta]%}%b%{$reset_color%}%{$fg[green]%}%u%m%{$reset_color%}"
+}
+
+function box_name {
+    [ -f ~/.box-name ] && cat ~/.box-name || hostname -s
+}
+
+setopt PROMPTBANG
+PROMPT='%{$fg[magenta]%}%n%{$reset_color%} at %{$fg[yellow]%}$(box_name)%{$reset_color%} in %{$fg_bold[green]%}${PWD/#$HOME/~}%{$reset_color%} $(vcprompt_info)
+$(virtualenv_info)${fg_bold[white]}[!!!%(?,,%{%}:%?)]%{$reset_color%} %# '
+
+local return_status="%{$fg[red]%}%(?..✘)%{$reset_color%}"
+RPROMPT='${return_status}%{$reset_color%}'