Update .gitignore to include gradle files
Update .gitignore to include gradle files

Tok11313/MySimoneRepository,java02014/JazzyListView,ukri82/JazzyListView,yincs/JazzyListView,hgl888/JazzyListView,qingsong-xu/JazzyListView,lxhxhlw/JazzyListView,hanhailong/JazzyListView,jaohoang/JazzyListView,xunyixiangchao/callCar,twotoasters/JazzyListView,ajju4455/JazzyListView,chengkaizone/JazzyListView