Docs update of the pelican core install depedencies
PyPI links for pelican depedencies
Improve Publishing to GitHub section of the doc
Update webassets plugin to allow user to pass configuration settings to Webassets through their settings file. Also removed language about DEBUG not compiling CSS since as of at least webassets 0.8 this is no longer an issue.
settings: Fix abspath existence check for path settings

The path to check is `absp`.  `p` is the setting name.
contents: Page.url_format should expose all metadata

I want to add `directory` metadata to each page in `content/pages/` to
place my non-article pages by hand:

  PAGE_URL = '{directory}/{slug}'
  PAGE_SAVE_AS = '{directory}/{slug}/index.html'

To do this, I need the `directory` metadata for formatting the URL.
Fixed a typo

BeatifulSoup -> Beautiful Soup
Merge pull request #674 from peterdesmet/patch-2

Fixed a typo
Port pelican to python 3.

Stays compatible with 2.x series, thanks to an unified codebase.
Update the "how to contribute" docs with py3k info.
Merge pull request #658 from elemoine/github

Improve Publishing to GitHub doc section
Revert previously erased changes
remove py2.6 support
Annotate py3k code when needed.
Use the en-us locale for functional tests
Merge branch 'master' into py3k
Merge branch 'master' of github.com:getpelican/pelican
Damn, I forgot to update travis.
Merge pull request #661 from wking/settings-abspath

settings: Fix abspath existence check for path settings
contents: Add rich comparisons to URLWrapper for easy sorting

There have been earlier attempts to sort categories and authors
[1,2,3], but they either sorted based on the object id [3], or only
sorted the main author and categories list.

This patch uses rich comparisons (keyed off URLWrapper.name, but
easily adjustable in subclasses) to make the objects sortable without
specifying a key for each sort.  For example, now

  {% for tag, articles in tags|sort %}

works as expected in a Jinja template.

The functools.total_ordering decorator fills in the missing rich
comparisons [4,5].

[1]: 877d454c8fa979343d4881a00977d9ac8786f178
[2]: 7f36e0ed20745c73886d96d4af303b0d858b8a53
[3]: d0ec18f4dbd623c55bdf4928ee7c363f699ef696
[4]: http://docs.python.org/2/library/functools.html#functools.total_ordering
[5]: http://docs.python.org/3/library/functools.html#functools.total_ordering