Make a fresh cluster throw UNKNOWN_SPACE for client ops.
Make a fresh cluster throw UNKNOWN_SPACE for client ops.

Problem:  When a fresh cluster was initialized, daemons would get
configurations, but clients would not.  A client attempting to connect
would essentially block waiting for a new configuration from the
coordinator.

Solution:  Send configurations to clients even if the configuration is
empty.

UIKit0/HyperDex,vashstorm/HyperDex,cactorium/HyperDex,tempbottle/HyperDex,tempbottle/HyperDex,tempbottle/HyperDex,UIKit0/HyperDex,rescrv/HyperDex,cactorium/HyperDex,pombredanne/HyperDex,pombredanne/HyperDex,hyc/HyperDex,UIKit0/HyperDex,jtk54/HyperDex,cactorium/HyperDex,vashstorm/HyperDex,rescrv/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,hyc/HyperDex,tempbottle/HyperDex,vashstorm/HyperDex,vashstorm/HyperDex,cactorium/HyperDex,jtk54/HyperDex,rescrv/HyperDex,cactorium/HyperDex,hyc/HyperDex,tempbottle/HyperDex,hyc/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,hyc/HyperDex,cactorium/HyperDex,jtk54/HyperDex,cactorium/HyperDex,jtk54/HyperDex,rescrv/HyperDex,vashstorm/HyperDex,hyc/HyperDex,UIKit0/HyperDex,vashstorm/HyperDex,vashstorm/HyperDex,UIKit0/HyperDex,vashstorm/HyperDex,rescrv/HyperDex,rescrv/HyperDex,cactorium/HyperDex,jtk54/HyperDex,UIKit0/HyperDex,rescrv/HyperDex,rescrv/HyperDex,rescrv/HyperDex,UIKit0/HyperDex,tempbottle/HyperDex,tempbottle/HyperDex,hyc/HyperDex,tempbottle/HyperDex,UIKit0/HyperDex,jtk54/HyperDex,pombredanne/HyperDex,pombredanne/HyperDex,cactorium/HyperDex,tempbottle/HyperDex,hyc/HyperDex,pombredanne/HyperDex,UIKit0/HyperDex,pombredanne/HyperDex,jtk54/HyperDex,vashstorm/HyperDex,pombredanne/HyperDex