Add colon characters escape in RRD connector
Add colon characters escape in RRD connector

vovkasm/facette,vovkasm/facette,psytra/facette,iaean/facette,facette/facette,githubert/facette,facette/facette,iaean/facette,yonglehou/facette,hirocaster/facette,facette/facette,iaean/facette,yonglehou/facette,psytra/facette,vovkasm/facette,psytra/facette,yonglehou/facette,hirocaster/facette,facette/facette,hirocaster/facette,githubert/facette,githubert/facette