klient: panic if register url is nil
klient: panic if register url is nil

cihangir/koding,drewsetski/koding,szkl/koding,szkl/koding,acbodine/koding,gokmen/koding,andrewjcasal/koding,koding/koding,sinan/koding,koding/koding,jack89129/koding,szkl/koding,koding/koding,kwagdy/koding-1,drewsetski/koding,kwagdy/koding-1,acbodine/koding,usirin/koding,acbodine/koding,andrewjcasal/koding,szkl/koding,cihangir/koding,gokmen/koding,acbodine/koding,usirin/koding,cihangir/koding,rjeczalik/koding,sinan/koding,jack89129/koding,alex-ionochkin/koding,alex-ionochkin/koding,acbodine/koding,acbodine/koding,kwagdy/koding-1,jack89129/koding,jack89129/koding,kwagdy/koding-1,andrewjcasal/koding,andrewjcasal/koding,mertaytore/koding,szkl/koding,acbodine/koding,alex-ionochkin/koding,alex-ionochkin/koding,jack89129/koding,usirin/koding,jack89129/koding,sinan/koding,sinan/koding,mertaytore/koding,rjeczalik/koding,drewsetski/koding,cihangir/koding,gokmen/koding,sinan/koding,rjeczalik/koding,koding/koding,rjeczalik/koding,usirin/koding,mertaytore/koding,rjeczalik/koding,sinan/koding,andrewjcasal/koding,mertaytore/koding,alex-ionochkin/koding,drewsetski/koding,rjeczalik/koding,andrewjcasal/koding,mertaytore/koding,cihangir/koding,koding/koding,drewsetski/koding,koding/koding,drewsetski/koding,koding/koding,rjeczalik/koding,gokmen/koding,kwagdy/koding-1,mertaytore/koding,szkl/koding,szkl/koding,mertaytore/koding,drewsetski/koding,alex-ionochkin/koding,jack89129/koding,usirin/koding,acbodine/koding,andrewjcasal/koding,gokmen/koding,kwagdy/koding-1,gokmen/koding,jack89129/koding,cihangir/koding,gokmen/koding,alex-ionochkin/koding,mertaytore/koding,sinan/koding,koding/koding,andrewjcasal/koding,szkl/koding,alex-ionochkin/koding,kwagdy/koding-1,cihangir/koding,gokmen/koding,sinan/koding,drewsetski/koding,usirin/koding,usirin/koding,kwagdy/koding-1,cihangir/koding,usirin/koding,rjeczalik/koding