Fixed set conceal options (#186)

* Fixed set conceal options

This change was necessary because the let &l:concealcursor and
&l:conceallevel when set locally will set it to the entire window
(vim documentation), so it need to be reset every time the buffer changes.

* Re-added  BufWinEnter

BufEnter runs before processing the modeline, so to process the
modelines as well the BufWinEnter is necessary.

Author: augustomelo

after/plugin/indentLine.vim

@@ -139,6 +139,8 @@ endfunction
 "{{{1 function! s:Setup()
 function! s:Setup()
     if index(g:indentLine_fileTypeExclude, &filetype) isnot -1
+        let &l:concealcursor = ""
+        let &l:conceallevel = "0"
         return
     endif
 
@@ -198,7 +200,7 @@ endfunction
 "{{{1 augroup indentLine
 augroup indentLine
     autocmd!
-    autocmd BufWinEnter * call <SID>Setup()
+    autocmd BufWinEnter,BufEnter * call <SID>Setup()
     autocmd User * if exists("b:indentLine_enabled") && b:indentLine_enabled ||
                     \ exists("b:indentLine_leadingSpaceEnabled") && b:indentLine_leadingSpaceEnabled |
                     \ call <SID>Setup() |