Fix for tables with section headers and contentInset
Fix for tables with section headers and contentInset

lujianwenance/ODRefreshControl,alterant-kr/ODRefreshControl,lyndonChen/ODRefreshControl,111minutes/ODRefreshControl-Fork,zhouwude/ODRefreshControl,lijie121210/ODRefreshControl,0xced/ODRefreshControl,liuzechen/ODRefreshControl,cnbin/ODRefreshControl,HelloZhu/ODRefreshControl,hugo-/ODRefreshControl,Sephiroth87/ODRefreshControl,onetot/ODRefreshControl,ywzw2013/ODRefreshControl,sekouperry/ODRefreshControl,gank0326/waterRefresh,bboyesc/ODRefreshControl