Merge pull request #4 from ujihisa/master

ドキュメントの修正
- Improved parse result.
- Improved parse path.
- Improved command substitution.
- Fixed parse file.
- Improved mkdir action.
- Improved documentation.
- Fixed vimfiler__shell error.
- Fixed error messages.
- Added FAQ section.
Merge branch 'master' of github.com:Shougo/unite-ssh
- Improved documentation.
- Converted markers.
- Deleted foldlevel.
- Improved narrow action behavior.
- Fixed path completion.
- Fixed for Cygwin ssh.
- Fixed for tempname().
- Fixed port number problem.
- Fixed copy files error.