navTab增加外部链接功能。

Signed-off-by: ketayao <ketayao@gmail.com>
Merge branch 'master' of https://github.com/ketayao/keta-custom.git

Conflicts:
	src/main/webapp/WEB-INF/tags/menuAccordion.tag
	src/main/webapp/WEB-INF/tags/navTabLink.tag
	src/main/webapp/WEB-INF/views/management/index/index.jsp