ignore wildignore with expand/glob

- closes #110

test/vimrc

@@ -5,7 +5,7 @@ let root = '/tmp/vundle_bundles/'
 let src = 'http://github.com/gmarik/vundle.git' 
 " let src = '~/.vim/bundle/vundle/.git' 
 
-if !isdirectory(expand(root).'/vundle')
+if !isdirectory(expand(root, 1).'/vundle')
   exec '!git clone '.src.' '.root.'/vundle'
 endif
 
@@ -56,6 +56,11 @@ filetype plugin indent on      " Automatically detect file types.
 
 set wildignore+=doc              " should not break helptags
 set wildignore+=.git             " should not break clone
+set wildignore+=.git/*             " should not break clone
+set wildignore+=*/.git/*
+" TODO: helptags fails with this
+" set wildignore+=doc/*             " should not break clone
+" set wildignore+=*/doc/*
 
 " BundleInstall