- rm_tman: do not ping already present nodes again if they have only changed their ID during neighborhood exchange
- rm_tman: do not ping already present nodes again if they have only changed their ID during neighborhood exchange

git-svn-id: d89f83fc72fb49d2f5b112dfb73cea192610bdff@1389 71766da9-9752-0410-ab17-bfafa751c56a

fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris