Panic when starting up lf in directory with single directory symlink.

[occivink]

Hope the title is not confusing.

More precisely, given a directory structure like so:

$ pwd 
/home/occivink/tmp
$ tree
.
├── bar/
└── foo/
    └── bar -> /home/occivink/tmp/bar/

3 directories, 0 files

Trying to start lf lf in the directory foo will cause a panic on startup

[gokcehan]

@occivink Closing this issue as discussed in #25.