new file:   .zshrc
fix duplicate 'ls' alias
new file:   .gitconfig
new file:   .tmux.conf
define a magic comment for vim
change declarations ordering
add an option: default-path
add an option: history-limit
move a magic comment position
add 'reattach-user-namespace' setting
add a vim's magic comment: foldmethod=marker
change comments to vim's marker (for folding)
show 'loadaverage' and 'usedmemory' (deeply inspired by http://yonchu.hatenablog.com/entry/20120414/1334422075)
change pane-moving keys
add .vim/
add .vimrc
use colorscheme 'wombat256mod' for not Windows
use MacVim.app
add .gvimrc
add font settings for MacVim.app