add podspec file
add podspec file

zhouwude/NJKWebViewProgress,Suninus/NJKWebViewProgress,hanhailong/NJKWebViewProgress,bboyesc/NJKWebViewProgress,XuXiaoJunChina/NJKWebViewProgress,linxiaoguo/NJKWebViewProgress,vvw/NJKWebViewProgress,phaibin/NJKWebViewProgress,AbooJan/NJKWebViewProgress,liuruxian/NJKWebViewProgress,TimorCan/NJKWebViewProgress,ninjinkun/NJKWebViewProgress,zhaoguohui/NJKWebViewProgress,jianwoo/NJKWebViewProgress,xb123456456/NJKWebViewProgress