Shortened the command by adding macros

Macros are copied from http://drz.ac/javascripts/MathJaxLocal.js
Added a new post on Archimedean sequence of partitions
Merge branch 'source' into wpcom-importer
Added more contents on the usage of "git diff"
Merge branch 'source' into wpcom-importer
Almost fixed the MathJax display problem for old posts