rake/cloud: make server url selection more robust
rake/cloud: make server url selection more robust

rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,UIKit0/rhodes,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,UIKit0/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,louisatome/rhodes,louisatome/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,louisatome/rhodes,rhosilver/rhodes-1,louisatome/rhodes