connpool: clear the connpool on close(). Disallow push and pull after close().
connpool: clear the connpool on close(). Disallow push and pull after close().

beni55/radix,fzzy/radix,bpowers/radix,mediocregopher/radix.v2,mediocregopher/radix.v3,alphagov/radix,gabrielperezs/radix.improved,rightscale/radix,ctrlaltdel121/radix,trigrass2/radix,bpowers/radix