complete BundleInstall command

autoload/vundle.vim

@@ -7,7 +7,7 @@
 com! -nargs=+         Bundle
    \ call vundle#config#bundle(<args>)
 
-com! -nargs=? -bang   BundleInstall
+com! -nargs=? -bang -complete=custom,vundle#scripts#complete BundleInstall
    \ call vundle#installer#install('!' == '<bang>', <q-args>)
 
 com! -nargs=? -bang   BundleClean

autoload/vundle/scripts.vim

@@ -4,6 +4,10 @@ func! vundle#scripts#search(bang,search_str)
   call s:display(reverse(results), a:search_str)
 endf
 
+func! vundle#scripts#complete(a,c,d)
+  return join(s:load_scripts(0),"\n")
+endf
+
 func! s:display(results,search_str)
   if !exists('s:buff') | let s:buff = tempname() | endif
   call writefile(['" Search results for: '.a:search_str] + a:results, s:buff)