+ added missing src/tcp files
+ added Copy for IoErrorcode
+ added Copy for IoError
+ added Endpoint::sendsyncbytype
+ added Endpoint::sendclonebytype
+ added lots more documentation for Endpoint
+ added more documentation for Message
+ added Message::dup_ifok
+ added Message::typeunwrap
+ relaxed compile time contraints on SyncMessage::get_payload
+ relaxed compile time contraints on CloneMessage::get_payload
! resolved some warning for tests/basic
- removed debugging output for tests/basic
@ updated version and description
@ implemented ability for sync message to be sent to multiple endpoints on the local net, but only one can actually receive the message
    @ changed Endpoint::Internal::recv
    + added protected public method Message::internal_clone
    + added protected public method SyncMessage::internal_clone
    @ changed Net::sendsync
    @ added field `valid` as Arc<Mutex<bool>> to SyncMessage
! fixed comment in SyncMessage for get_payload
! fixed bug where Message.clone did not properly clone canloop field