Be more explicit about what windows to replace

[qstrahl]

• Just checking for any buftype is insufficient
• See for example Unexpected behaviour when using ctrlp from a dirvish buffer justinmk/vim-dirvish#43 -- a directory buffer should
  have buftype=nofile, but ctrlp should still replace it
• Look instead for buftype=help or buftype=quickfix, explicitly

[qstrahl]

@mattn Your thoughts?

[mattn]

Do you set g:ctrlp_reuse_window like below?

let g:ctrlp_reuse_window = 'help|quickfix'

[qstrahl]

Nope, I don't set g:ctrlp_reuse_window at all. Why?

[qstrahl]

Rebased the branch up to date with latest in master. What do I have to do to get this merged in?

[qstrahl]

Oops, didn't mean to close it. :x

[mattn]

okay, I'll merge this. however, I wonder what we will have to add another file types into the buftypes.

[mattn]

Thanks.

[p8]

Replacing
let buftypes = [ 'quickfix', 'help']
with
let buftypes = [ 'quickfix', 'help', 'nofile' ]
fixed it for me.

Now even when the NERDTree buffer is active ctrlp doesn't open the file in the NERDTree buffer.