Add codeword theme

- Single line PS1
- Shares history in realtime among bash windows

themes/codeword/codeword.theme.bash

@@ -0,0 +1,38 @@
+SCM_THEME_PROMPT_PREFIX=${SCM_THEME_PROMPT_SUFFIX}
+SCM_THEME_PROMPT_DIRTY="${bold_red} ✗${normal}"
+SCM_THEME_PROMPT_CLEAN="${bold_green} ✓${normal}"
+SCM_GIT_CHAR="${green}±${normal}"
+
+scm_prompt() {
+    CHAR=$(scm_char)
+    if [ $CHAR = $SCM_NONE_CHAR ]
+        then
+            return
+        else
+            echo " [$(scm_char)$(scm_prompt_info)]"
+    fi
+}
+
+mark_prompt() {
+    echo "${green}\$${normal}"
+}
+
+user_host_path_prompt() {
+    ps_user="${green}\u${normal}";
+    ps_host="${blue}\H${normal}";
+    ps_path="${yellow}\w${normal}";
+    echo "$ps_user@$ps_host:$ps_path"
+}
+
+prompt() {
+  PS1="$(user_host_path_prompt)$(virtualenv_prompt)$(scm_prompt) $(mark_prompt) "
+}
+
+share_history() {
+  history -a
+  history -c
+  history -r
+}
+
+safe_append_prompt_command share_history
+safe_append_prompt_command prompt