Mathjax configuration

- http://www.idryman.org/blog/2012/03/10/writing-math-equations-on-octopress/
- http://luikore.github.com/2011/09/good-things-learned-from-octopress/
Change kramdown version
Change social network links location
Modify post footer style
List style modification
Delete comment box title
Fix post footer bug
Disable google font usage
Post modification
New post on octopress
Modify post on Octopress
Modify post on Octopress
Add and modify posts
Chnage equation alignment