[#1729] added code from roundrobin to test for down children and find a new one of the chosen node is down
[#1729] added code from roundrobin to test for down children and find a new one of the chosen node is down

janiheikkinen/irods,janiheikkinen/irods,leesab/irods,leesab/irods,PaulVanSchayck/irods,janiheikkinen/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,janiheikkinen/irods,leesab/irods,janiheikkinen/irods,PaulVanSchayck/irods,leesab/irods,leesab/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,janiheikkinen/irods,leesab/irods,PaulVanSchayck/irods,leesab/irods,janiheikkinen/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,janiheikkinen/irods,janiheikkinen/irods