First iteration of Fire-and-Forget style UDP IO
Temporary LIMBO commit, but UDP now uses the unified selector
Another LIMBO commit, but TCP now uses the unified selector
Various fixes to tests
Removed WithByteBuffer and friends
Factored out common manager code and SocketOptions
Failed commands in SelectionHandler are now notified in a nicer way.
Eliminated KickStartDone and using ChannelRegistered
Fixed temporarily disabled StopReading operation
Added connection style UDP (not working fully yet)
Various minor changes:
 - added forwarders to SO objects to Inet
 - added batch read support for UDP
 - changed write for UDP
 - SimpleSender is now registered as everone else
Bind failures are now explicitly reported instead of swallowed
Updated tests to work (or be disabled) on Win
Connection based UDP fixed

 - SelectionHandler unregisters only selected interests, not all.
 - Fixed tests to be properly ignored on Windows
Fixed according to revew comments
First iteration of documentation
Second iteration of documentation

 - Added basic UDP and TCP sections
SimpleSender now works with the companion object
Merge pull request #1098 from drewhk/wip-IO-UDP-fire-and-forget-drewhk

UDP implementation and generalized Selector