add Icon Set (images and CSS modified)
    external_blue.png / external_brown.png / external_gray.png
    external-rtl_blue.png / external-rtl_brown.png / external-rtl_gray.png
positioning div.generated-sidebar, #p-cactions
remove mobile CSS
top menu position modified 상단메뉴 수정
1. change font-family:
font: sans-serif; -> font-family: "맑은고딕", "나눔고딕", "돋움", sans-serif;

2.edit <h>

3.edit <ol>:
line-height: 1.5em; -> 1.3em;
margin: .3em 0 0 3.2em; -> .3em 0 0 36px;

4.edit <pre>
padding: 1em; -> 8px;
border: 1px dashed #2f6fab; -> none;

5.edit .code li.li2 for Extention:Geshi
.code li.li2 {
	font-weight: normal !important;
	color: red;
}