Merge pull request #56 from erikpukinskis/master

Move last little bit of script into a function so local is available

gitprompt.sh

@@ -277,6 +277,7 @@ function prompt_callback_default {
     return
 }
 
+function run {
   if [ "`type -t prompt_callback`" = 'function' ]; then
       prompt_callback="prompt_callback"
   else
@@ -307,3 +308,6 @@ fi
 
   git_prompt_dir
   source "$__GIT_PROMPT_DIR/git-prompt-help.sh"
+}
+
+run