added power shell
Merge branch 'master' of git://github.com/rymizuki/dotfiles
Merge branch 'master' of git://github.com/rymizuki/dotfiles
Merge branch 'master' of git://github.com/rymizuki/dotfiles
Merge branch 'master' of git://github.com/rymizuki/dotfiles
colordiffの設定追加