Implement completed snippet feature

autoload/unite/sources/neosnippet.vim

@@ -50,7 +50,7 @@ function! s:source.hooks.on_init(args, context) "{{{
   let a:context.source__cur_keyword_pos =
         \ s:get_keyword_pos(neosnippet#util#get_cur_text())
   let a:context.source__snippets =
-        \ sort(values(neosnippet#helpers#get_snippets()))
+        \ sort(values(neosnippet#helpers#get_completion_snippets()))
 endfunction"}}}
 
 function! s:source.gather_candidates(args, context) "{{{