[emacs] improve e using ||
[power_suspend_after] new to improve suspend_after need sudo suspend_after
[power_reboot_after] new to improve reboot_after need sudo reboot_after
[power_off_after] new to improve poweroff_after need sudo poweroff_after
[tmux] add tmux support: 1. t for launch tmux; 2. .tmux.conf for config
[vagrant] add vagrant support vm
[vagrant] add vm/lucid32
[pry] update pryrc to add abc function
[zsh] update zshrc to disable suspend_after alias and add alert alias