Fix error when log in
Fix error when log in

When payload is undefined (in our case, JGuest.recycle emitting
'NeedsCleanup' with no payload), node-amqp throws the exception
caused by checking Buffer.bytelength of that payload (line 1321).
Could not use empty string replacement either, so replace undefined
payload with an empty object for now.

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