init Emacs Info help settings
init Emacs font settings
init Emacs popup and tooltip settings
init Emacs highlight settings
add package ido-vertical-mode, and init ido and ido-vertical-mode's configurations.
load library uniquify for Emacs
add package switch-window, and window-number for Emacs window navigation
add package workgroups2 for save and load Emacs windows layout session
add package E2WM for Emacs windows management
add package popwin to capture all popup windows, and set their show up position
move undo-tree config into edit part
add package multiple-cursors, and init it