Install ESS.
Disable skk-isearch.
Switch platex with lualatex-ja
Stop setting org-beamer-frame-level.

It defaults 1.
Use ditta installed by Homebew.
Install rainbow-delimiters.el via Cask

This change switches el-get with Cask for installing rainbow-delimiters.
Export both ditaa and dot files in EPS.
Update ddskk from 15.1 to 20141116
Install migemo via Cask

This change switches auto-install with Cask for installing migemo.