Extract category_link filter from category_generator.rb plugin

Allows category_link to be used as a filter to display a link to
any category.
Added robots.txt, with sitemap link
Updated Github API to V3.

Github API V2 has been removed.  The response data format also changed.
Updated Github API to V3.

Github API V2 has been removed.  The response data format also changed.
Octopress init
Site updated at 2012-08-29 07:48:49 UTC
Site updated at 2012-08-29 07:52:17 UTC
Site updated at 2012-08-29 08:10:59 UTC
Site updated at 2012-08-29 08:15:51 UTC
Site updated at 2012-08-29 08:27:02 UTC
Site updated at 2012-08-29 09:57:34 UTC
Site updated at 2012-08-29 10:17:50 UTC
Site updated at 2012-09-01 02:47:50 UTC
bumped rbenv version fixing #743
Merge branch 'master' of github.com:imathis/octopress
Updated Github API to V3.

Github API V2 has been removed.  The response data format also changed.
Updated Github API to V3.

Github API V2 has been removed.  The response data format also changed.
Merge pull request #675 from zlu/master

Update Github API to V3
Twitter API call and links are now protocol relative
Merge branch 'master' of github.com:imathis/octopress