- append slash to indicate directory, so expand ingnores wildignore
settings

Fixed typo.

Conflicts:

	test/vimrc

Tiny fixes

GitHub usernames cannot start with an underscore, but they can be a
single character long.

- closes #21

1. disable filetype detection
2. configure bundles
3. enable filetype detection

- otherwise ftplugin files won't work

PS: finally reproduced myself: learning the hard way...