Flattr button added
Flattr button added

eowise/recyclerview-stickyheaders,bingshanguxue/recyclerview-stickyheaders,msdgwzhy6/recyclerview-stickyheaders,pinball83/recyclerview-stickyheaders,akrezic1/recyclerview-stickyheaders,chengkaizone/recyclerview-stickyheaders