* remove 'no-js' in default layout.
 + add 'getting-started.md'.
 * added document about esponsive utilities.
 + add 'variables.less'.
 * code for task#1712.
Merge branch 'master' of git@github.com:easysoft/zui
* code for task#1712.

Conflicts:

	standards.md
 + added 'zui.less'.
 * code for task#1712.
Merge branch 'master' of git@github.com:easysoft/zui
 * ajust code format.
 * add solution of typography.
 * add zui.js.
 * the basic framework of zepto.js.
 * added document content of color scheme.
 * update document.
 * change file structure.