为OpenWRT新增njit-client的LuCi配置页面

感谢网友gyteng为OpenWRT新增njit-client的Luci配置页面,，帮助普通用户通过网页设置802.1X登录账号密码。gyteng在个人主页中对该LuCi界面做了简要介绍，请访问：
http://gyteng.info/2012/12/26/LuCI.html

Signed-off-by: 刘群 <liuqun68@gmail.com>
SourceForge开源项目托管

新增SourceForge开源项目托管主页
When building njit-client we need pkg-config

Ubuntu and Debian do not install pkg-config by default.
By the way, on RedHat(Fedora) the rpm package is named pkgconfig.