Merge pull request #65 from wilhelmtell/hotfix/shebang_test

shebang doesn't have to contain env

ftdetect/javascript.vim

@@ -1,5 +1,5 @@
 function! s:DetectJS()
-    if getline(1) =~# '^#!.*/bin/env\s\+node\>'
+    if getline(1) =~# '^#!.*/bin/\(env\s\+\)\?node\>'
         setfiletype javascript
     endif
 endfunction