Implementation of TOC for articles (blog, news, documentation). Based on
- https://github.com/ghiculescu/jekyll-table-of-contents
- http://stackoverflow.com/questions/7985081/how-to-deploy-a-jekyll-site-locally-with-css-js-and-background-images-included

Several options available to customize toc() behaviour. In addition we
may add a CSS...
Disable animation, 'back to top' links and switch to unorder lists for TOC
Restructure page to place TOC on left hand side of text when space is available
Reduce horizontal size of all lists and add a quote style left hand border to page contents
Merge pull request #88 from jouvin/jekyll-toc

Implementation of TOC for articles (blog, news, documentation).
Merge pull request #1 from jrha/jekyll-toc

Rework TOC styling and placement
Merge pull request #96 from jouvin/jekyll-toc

Jekyll TOC improvements
Link directly to articles mentioned in introduction
yum migration guide: fix list of packages to remove before upgrading a
SL6 machine
Merge pull request #99 from jouvin/yum-migration

yum migration guide: fix list of packages to remove before upgrading a SL6 machine
Merge pull request #98 from jrha/link-to-things

Link directly to articles mentioned in introduction
Switch from fixed to static navbar

This allows anchors to work properly, which are used heavily by our TOC.
Merge pull request #100 from jrha/normal-navbar

Switch from fixed to static navbar
YUM migration doc: fix typo
Merge pull request #101 from jouvin/yum-migration

YUM migration doc: fix typo