Revert "0922"

This reverts commit 2c09d724f7bec2f902fe69e01295bbdae43da2a7.

Conflicts:
	app/content/tpls/app/header.tpl
	app/core/styles/css/bootstrap.css
	app/core/styles/css/style.css
	app/exam/app.php
	app/exam/tpls/app/exampaperheader.tpl
	app/exam/tpls/app/header.tpl
	app/user/tpls/app/header.tpl