Required lots of rework since the GOBChannel appeared to be reading
ahead of the data it actually needed. Now using more low-level IO
to send the clientId over to the agent instead.
assertions are ued. With suite.Required() there are issues in getting
the test results correct.
Instead, use standard assertions and use suite.T().Failed() to do
early returns.
Wrote ChannelReadWriter that simulates a connection inmemory.
This is used by the agentserver test for testing the initialization. The
first test is already working.
* removed the Async utility
* now using Ping message to webclient for keep alive instaed of actual content
* added remote shell to AgentInfo
* retry of connections to the agent
* better logging for SynchronizeStreams
