* begin adding icmp client
* rely on anon structs
* add tests
* tests passing
* icmp fleshed out
* rework icmp to include ip addr
* rename StackAsync.Demux/Encapsulate to RecvEthernet and SendEthernet
* remove legacy unreachable TCP tests
* remove uses of deprecated internet.StackNode in preference of lneto.StackNode
* documentation
* rename methods to signal no I/O happening
* add prints to investigate slowness
* add loop sleep for blocking Stack
* add connection close http attribute and detect end of HTML page
* add timeout to bridge read
* examples/xnet: add ntp timestamp to prints and show output in readme
* add polling to http tap interface
* more digits in ntp format
* prevent crashes on non-8 timestamp
Pat Whittingslow