The header is nice to have, it's displayed in Haddocks.

Here I copied the blog post announcing the library, because it describes
it very well, and not everyone who discovers the library will know where
to look for such a comprehensive description.

http://chrisdone.com/posts/path-package

I've made two edits to that post to reflect new things:

1. On line 123 there is a mention of ‘fromAbsDir’ and other similar
   functions.

2. On line 363 I've put a link to my ‘path-io’ package that provides
   well-typed interface to ‘directory’ and ‘temporary’. I've written the
   package for my personal needs, because I was tired of the endless
   conversion and I wanted things like recursive copying of
   directories. When I published it, someone opened an issue asking to
   add some functions from Stack's ‘Path.IO’ — that's what I'm going to
   do. I expect it will be able to replace ‘Path.IO’ in Stack soon. I've
   talked to Stack maintainers and they like the package and have
   nothing against the switch.

Fix a typo

Add NFData instance for Path

Signed-off-by: Magnus Therning <magnus@therning.org>

Various improvements

This helps to “double check” programmers' assumptions about what kind of
path he is converting into ‘FilePath’. Without these synonyms it's
possible to silently convert wrong type of path into ‘FilePath’.

Improve a few property definitions

The properties for stripDir and parent used the name 'parent' as a
variable.

The properties for filename and dirname seemed to be wrong and also used
'parent' as a variable.

test: missing case for parseRelFile

Remove unused DeriveGeneric extension, fixes GHC 7.0 build

Handle parent directory checks on Windows

Add source repository information

Add ellipsis