added handling of prev_members, to prevent spurious shuns at startup time
added handling of prev_members, to prevent spurious shuns at startup time

ibrahimshbat/JGroups,TarantulaTechnology/JGroups,pruivo/JGroups,danberindei/JGroups,TarantulaTechnology/JGroups,dimbleby/JGroups,tristantarrant/JGroups,ibrahimshbat/JGroups,danberindei/JGroups,vjuranek/JGroups,Sanne/JGroups,deepnarsay/JGroups,slaskawi/JGroups,tristantarrant/JGroups,Sanne/JGroups,rvansa/JGroups,kedzie/JGroups,deepnarsay/JGroups,kedzie/JGroups,vjuranek/JGroups,TarantulaTechnology/JGroups,ibrahimshbat/JGroups,belaban/JGroups,rvansa/JGroups,Sanne/JGroups,kedzie/JGroups,rhusar/JGroups,pferraro/JGroups,vjuranek/JGroups,ligzy/JGroups,rpelisse/JGroups,rhusar/JGroups,rpelisse/JGroups,ibrahimshbat/JGroups,ligzy/JGroups,dimbleby/JGroups,pferraro/JGroups,belaban/JGroups,slaskawi/JGroups,danberindei/JGroups,rhusar/JGroups,pferraro/JGroups,pruivo/JGroups,pruivo/JGroups,deepnarsay/JGroups,dimbleby/JGroups,rpelisse/JGroups,belaban/JGroups,ligzy/JGroups,slaskawi/JGroups