move octokit to logged in user
manual page title
this is a cache key problem
upgrade to latest rack, fixes #253
upgrade json versions for cve-2013-0269
update text for references to Software Freedom Conservancy

Software Freedom Conservancy is attempting to normalize
style guidelines for references to the organization. From
their guidelines sent to project heads:

  - please do not add a "the" in front of "Software Freedom
    Conservancy" or "Conservancy" in any written context.
    We've admittedly used a "the" intermittently in the
    past, but we'd like to be consistent going forward.  So,
    instead of "Project X is a member of the Conservancy,"
    just say "Project X is a member of Conservancy."

  - please use "Conservancy" as the abbreviation for
    "Software Freedom Conservancy."  We're discontinuing the
    use of the acronym "SFC," and we ask your help in doing
    the same.

This commit updates all references across git-scm.com to
match the new guidelines.
Merge pull request #255 from github/sfc-branding

update text for references to Software Freedom Conservancy
Update the list of available languages for the book.

The algorithm applied is quite simple:

 1. Run `summary.rb` in the progit working dir
 2. Languages with 99% or above are fully translated
 3. Languages with 10% or above are partially translated
Merge pull request #256 from jnavila/update_books_languages

Update the list of available languages for the book.
Skip nils when filtering tags

The tag filtering block can get a nil value, so we need to catch it.
url-encode book section titles

Some of the translated section titles end in question marks.
When these are placed directly into a link without quoting,
the trailing "?" is parsed as a parameter separator, leading
to a broken link.

The same problem was fixed in #149, but only for the actual
section listing. This commit fixes the prev/next links, as
well as any direct chapter links.
Merge pull request #259 from github/urlencode-sections

url-encode book section titles
Merge pull request #258 from carlosmn/nil-tag

Skip nils when filtering tags
Update rails
Update Microsoft Logo

Update with the new Microsoft branding. Note that using the logotype
only and not the full logo is the correct branding when used as
an endorsement image (so as to not distract from the main branding
of the Git site)
Merge pull request #264 from martinwoodward/update-msft-logo

Update Microsoft Logo
added Windows platform for SourceTree

http://blogs.atlassian.com/2013/03/introducing-sourcetree-git-client-microsoft-windows/
Merge pull request #267 from dhergert/master

Updated Git GUI clients - SourceTree for Windows
Add tables capability to the markdown parser

This is to prepare the migration of the progit sources to real tables
made in PHP markdown.
Blog entries are visible again.Also making some small changes to blog structure.
We can keep adding blog posts by just adding .markdown or .html files to the app/view/blog/posts directory (it was blog/progit before).