client: fix send race condition by creating a single send hub channel
client: fix send race condition by creating a single send hub channel

fatih/kite,ppknap/kite,mischief/kite,cihangir/kite,leeola/kite,ppknap/kite,rjeczalik/kite,wingyplus/kite,fatih/kite,cihangir/kite,mischief/kite,wingyplus/kite,koding/kite,koding/kite,leeola/kite,280455936/kite,280455936/kite,rjeczalik/kite,ppknap/kite,rjeczalik/kite,koding/kite